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Merging upstream version 26.28.1.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
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Daniel Baumann 2025-06-15 10:36:04 +02:00
parent 893214206a
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Signed by: daniel
GPG key ID: FBB4F0E80A80222F
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CHANGELOG.md
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Changelog
=========
## [v26.27.0] - 2025-06-12
### :boom: BREAKING CHANGES
- due to [`ac6555b`](https://github.com/tobymao/sqlglot/commit/ac6555b4d6c162ef7b14b63307d01fd560138ea0) - preserve DIV binary operator, fixes [#5198](https://github.com/tobymao/sqlglot/pull/5198) *(PR [#5199](https://github.com/tobymao/sqlglot/pull/5199) by [@georgesittas](https://github.com/georgesittas))*:
preserve DIV binary operator, fixes #5198 (#5199)
- due to [`dfdd84b`](https://github.com/tobymao/sqlglot/commit/dfdd84bbc50da70f40a17b39935f8171d961f7d2) - CTEs instead of subqueries for pipe syntax *(PR [#5205](https://github.com/tobymao/sqlglot/pull/5205) by [@geooo109](https://github.com/geooo109))*:
CTEs instead of subqueries for pipe syntax (#5205)
- due to [`5f95299`](https://github.com/tobymao/sqlglot/commit/5f9529940d83e89704f7d25eda63cd73fdb503ae) - support multi-part (>3) dotted functions *(PR [#5211](https://github.com/tobymao/sqlglot/pull/5211) by [@georgesittas](https://github.com/georgesittas))*:
support multi-part (>3) dotted functions (#5211)
- due to [`02afa2a`](https://github.com/tobymao/sqlglot/commit/02afa2a1941fc67086d50dffac2857262f1c3c4f) - Preserve quoting for UDT *(PR [#5216](https://github.com/tobymao/sqlglot/pull/5216) by [@VaggelisD](https://github.com/VaggelisD))*:
Preserve quoting for UDT (#5216)
### :sparkles: New Features
- [`c20f85e`](https://github.com/tobymao/sqlglot/commit/c20f85e3e171e502fc51f74894d3313f0ad61535) - **spark**: support ALTER ADD PARTITION *(PR [#5208](https://github.com/tobymao/sqlglot/pull/5208) by [@georgesittas](https://github.com/georgesittas))*
- :arrow_lower_right: *addresses issue [#5204](https://github.com/tobymao/sqlglot/issues/5204) opened by [@cosinequanon](https://github.com/cosinequanon)*
### :bug: Bug Fixes
- [`99bbae3`](https://github.com/tobymao/sqlglot/commit/99bbae370329c5f5cd132b711c714359cf96ba58) - **sqlite**: allow ALTER RENAME without COLUMN keyword fixes [#5195](https://github.com/tobymao/sqlglot/pull/5195) *(commit by [@georgesittas](https://github.com/georgesittas))*
- [`ac6555b`](https://github.com/tobymao/sqlglot/commit/ac6555b4d6c162ef7b14b63307d01fd560138ea0) - **hive**: preserve DIV binary operator, fixes [#5198](https://github.com/tobymao/sqlglot/pull/5198) *(PR [#5199](https://github.com/tobymao/sqlglot/pull/5199) by [@georgesittas](https://github.com/georgesittas))*
- [`d0eeb26`](https://github.com/tobymao/sqlglot/commit/d0eeb2639e771e8f8b6feabd41c65f16ed5a9829) - eliminate_join_marks has multiple issues fixes [#5188](https://github.com/tobymao/sqlglot/pull/5188) *(PR [#5189](https://github.com/tobymao/sqlglot/pull/5189) by [@snovik75](https://github.com/snovik75))*
- :arrow_lower_right: *fixes issue [#5188](https://github.com/tobymao/sqlglot/issues/5188) opened by [@snovik75](https://github.com/snovik75)*
- [`dfdd84b`](https://github.com/tobymao/sqlglot/commit/dfdd84bbc50da70f40a17b39935f8171d961f7d2) - **parser**: CTEs instead of subqueries for pipe syntax *(PR [#5205](https://github.com/tobymao/sqlglot/pull/5205) by [@geooo109](https://github.com/geooo109))*
- [`77e9d9a`](https://github.com/tobymao/sqlglot/commit/77e9d9a0269e2013379967cf2f46fbd79c036277) - **mysql**: properly parse STORED/VIRTUAL computed columns *(PR [#5210](https://github.com/tobymao/sqlglot/pull/5210) by [@georgesittas](https://github.com/georgesittas))*
- :arrow_lower_right: *fixes issue [#5203](https://github.com/tobymao/sqlglot/issues/5203) opened by [@mdebski](https://github.com/mdebski)*
- [`5f95299`](https://github.com/tobymao/sqlglot/commit/5f9529940d83e89704f7d25eda63cd73fdb503ae) - **parser**: support multi-part (>3) dotted functions *(PR [#5211](https://github.com/tobymao/sqlglot/pull/5211) by [@georgesittas](https://github.com/georgesittas))*
- :arrow_lower_right: *fixes issue [#5200](https://github.com/tobymao/sqlglot/issues/5200) opened by [@mateuszpoleski](https://github.com/mateuszpoleski)*
- [`02afa2a`](https://github.com/tobymao/sqlglot/commit/02afa2a1941fc67086d50dffac2857262f1c3c4f) - **postgres**: Preserve quoting for UDT *(PR [#5216](https://github.com/tobymao/sqlglot/pull/5216) by [@VaggelisD](https://github.com/VaggelisD))*
- :arrow_lower_right: *fixes issue [#5212](https://github.com/tobymao/sqlglot/issues/5212) opened by [@NickCrews](https://github.com/NickCrews)*
- [`f37c0b1`](https://github.com/tobymao/sqlglot/commit/f37c0b1197321dd610648ce652a171ab063deeeb) - **snowflake**: ensure a standalone GET() expression can be parsed *(PR [#5219](https://github.com/tobymao/sqlglot/pull/5219) by [@georgesittas](https://github.com/georgesittas))*
### :wrench: Chores
- [`ad8a4e7`](https://github.com/tobymao/sqlglot/commit/ad8a4e73e1a9e4234f0b711163fb49630acf736c) - refactor join mark elimination to use is_correlated_subquery *(commit by [@georgesittas](https://github.com/georgesittas))*
## [v26.26.0] - 2025-06-09
### :boom: BREAKING CHANGES
- due to [`434c45b`](https://github.com/tobymao/sqlglot/commit/434c45b547c3a5ea155dc8d7da2baab326eb6d4f) - improve support for ENDSWITH closes [#5170](https://github.com/tobymao/sqlglot/pull/5170) *(commit by [@georgesittas](https://github.com/georgesittas))*:
improve support for ENDSWITH closes #5170
- due to [`bc001ce`](https://github.com/tobymao/sqlglot/commit/bc001cef4c907d8fa421d3190b4fa91865d9ff6c) - Add support for ANY_VALUE for versions 16+ *(PR [#5179](https://github.com/tobymao/sqlglot/pull/5179) by [@VaggelisD](https://github.com/VaggelisD))*:
Add support for ANY_VALUE for versions 16+ (#5179)
- due to [`6a2cb39`](https://github.com/tobymao/sqlglot/commit/6a2cb39d0ceec091dc4fc228f26d4f457729a3cf) - virtual column with AS(expr) as ComputedColumnConstraint *(PR [#5180](https://github.com/tobymao/sqlglot/pull/5180) by [@geooo109](https://github.com/geooo109))*:
virtual column with AS(expr) as ComputedColumnConstraint (#5180)
- due to [`29e2f1d`](https://github.com/tobymao/sqlglot/commit/29e2f1d89c095c9fab0944a6962c99bd745c2c91) - Array_intersection transpilation support *(PR [#5186](https://github.com/tobymao/sqlglot/pull/5186) by [@HarishRavi96](https://github.com/HarishRavi96))*:
Array_intersection transpilation support (#5186)
### :sparkles: New Features
- [`434c45b`](https://github.com/tobymao/sqlglot/commit/434c45b547c3a5ea155dc8d7da2baab326eb6d4f) - improve support for ENDSWITH closes [#5170](https://github.com/tobymao/sqlglot/pull/5170) *(commit by [@georgesittas](https://github.com/georgesittas))*
- [`63f9cb4`](https://github.com/tobymao/sqlglot/commit/63f9cb4b158b88574136b32241ee60254352c9e6) - **sqlglotrs**: match the Python implementation of __repr__ for tokens *(PR [#5172](https://github.com/tobymao/sqlglot/pull/5172) by [@georgesittas](https://github.com/georgesittas))*
- [`c007afa`](https://github.com/tobymao/sqlglot/commit/c007afa23831e9bd86f401d85260e15edf00328f) - support Star instance as first arg of exp.column helper *(PR [#5177](https://github.com/tobymao/sqlglot/pull/5177) by [@georgesittas](https://github.com/georgesittas))*
- [`bc001ce`](https://github.com/tobymao/sqlglot/commit/bc001cef4c907d8fa421d3190b4fa91865d9ff6c) - **postgres**: Add support for ANY_VALUE for versions 16+ *(PR [#5179](https://github.com/tobymao/sqlglot/pull/5179) by [@VaggelisD](https://github.com/VaggelisD))*
- :arrow_lower_right: *addresses issue [#4674](https://github.com/TobikoData/sqlmesh/issues/4674) opened by [@petrikoro](https://github.com/petrikoro)*
- [`ba05ff6`](https://github.com/tobymao/sqlglot/commit/ba05ff67127e056d567fc2c1d3bcc8e3dcce7b7e) - **parser**: AGGREGATE with GROUP AND ORDER BY pipe syntax *(PR [#5171](https://github.com/tobymao/sqlglot/pull/5171) by [@geooo109](https://github.com/geooo109))*
- [`26077a4`](https://github.com/tobymao/sqlglot/commit/26077a47d9db750f44ab1baf9a434596b5bb613b) - make to_table more lenient *(PR [#5183](https://github.com/tobymao/sqlglot/pull/5183) by [@georgesittas](https://github.com/georgesittas))*
- [`29e2f1d`](https://github.com/tobymao/sqlglot/commit/29e2f1d89c095c9fab0944a6962c99bd745c2c91) - Array_intersection transpilation support *(PR [#5186](https://github.com/tobymao/sqlglot/pull/5186) by [@HarishRavi96](https://github.com/HarishRavi96))*
- [`d86a114`](https://github.com/tobymao/sqlglot/commit/d86a1147aeb866ed0ab2c342914ecf8cbfadac8a) - **sqlite**: implement RESPECT/IGNORE NULLS in first_value() *(PR [#5185](https://github.com/tobymao/sqlglot/pull/5185) by [@NickCrews](https://github.com/NickCrews))*
- [`1d50fca`](https://github.com/tobymao/sqlglot/commit/1d50fca8ffc34e4acbc1b791c4cdf5f184a748db) - improve transpilation of st_point and st_distance *(PR [#5194](https://github.com/tobymao/sqlglot/pull/5194) by [@georgesittas](https://github.com/georgesittas))*
- [`756ec3b`](https://github.com/tobymao/sqlglot/commit/756ec3b65db1eb2572d017a3ac12ece6bb44c726) - **parser**: SET OPERATORS with pipe syntax *(PR [#5184](https://github.com/tobymao/sqlglot/pull/5184) by [@geooo109](https://github.com/geooo109))*
### :bug: Bug Fixes
- [`6a2cb39`](https://github.com/tobymao/sqlglot/commit/6a2cb39d0ceec091dc4fc228f26d4f457729a3cf) - **parser**: virtual column with AS(expr) as ComputedColumnConstraint *(PR [#5180](https://github.com/tobymao/sqlglot/pull/5180) by [@geooo109](https://github.com/geooo109))*
- :arrow_lower_right: *fixes issue [#5173](https://github.com/tobymao/sqlglot/issues/5173) opened by [@suyah](https://github.com/suyah)*
- [`c87ae02`](https://github.com/tobymao/sqlglot/commit/c87ae02aa263be8463ca7283ebd090385a4bfd59) - **sqlite**: Add REPLACE to command tokens *(PR [#5192](https://github.com/tobymao/sqlglot/pull/5192) by [@VaggelisD](https://github.com/VaggelisD))*
- :arrow_lower_right: *fixes issue [#5187](https://github.com/tobymao/sqlglot/issues/5187) opened by [@stefanmalanik](https://github.com/stefanmalanik)*
- [`4b89afd`](https://github.com/tobymao/sqlglot/commit/4b89afdcc0063e70cbc64165c7f1f5102afaa87c) - **starrocks**: array_agg_transpilation_fix *(PR [#5190](https://github.com/tobymao/sqlglot/pull/5190) by [@Swathiraj23](https://github.com/Swathiraj23))*
- [`461b054`](https://github.com/tobymao/sqlglot/commit/461b0548832ab8d916c3a6638f27a49f681109fe) - **postgres**: support use_spheroid argument in ST_DISTANCE *(commit by [@georgesittas](https://github.com/georgesittas))*
### :wrench: Chores
- [`83de4e1`](https://github.com/tobymao/sqlglot/commit/83de4e11bc1547aa22b275b20c0326dfbe43b2b8) - improve benchmark result displaying *(PR [#5176](https://github.com/tobymao/sqlglot/pull/5176) by [@georgesittas](https://github.com/georgesittas))*
- [`5d5dc2f`](https://github.com/tobymao/sqlglot/commit/5d5dc2fa471bd53730e03ac8039804221949f843) - Clean up exp.ArrayIntersect PR *(PR [#5193](https://github.com/tobymao/sqlglot/pull/5193) by [@VaggelisD](https://github.com/VaggelisD))*
## [v26.25.3] - 2025-06-04
### :sparkles: New Features
- [`964b4a1`](https://github.com/tobymao/sqlglot/commit/964b4a1e367e00e243b80edf677cd48d453ed31e) - add line/col position for Star *(commit by [@georgesittas](https://github.com/georgesittas))*
@ -4794,3 +4880,5 @@ Changelog
[v26.25.1]: https://github.com/tobymao/sqlglot/compare/v26.25.0...v26.25.1
[v26.25.2]: https://github.com/tobymao/sqlglot/compare/v26.25.1...v26.25.2
[v26.25.3]: https://github.com/tobymao/sqlglot/compare/v26.25.2...v26.25.3
[v26.26.0]: https://github.com/tobymao/sqlglot/compare/v26.25.3...v26.26.0
[v26.27.0]: https://github.com/tobymao/sqlglot/compare/v26.26.0...v26.27.0

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@ -632,6 +632,7 @@
<li><a href="https://github.com/dagster-io/dagster">Dagster</a></li>
<li><a href="https://github.com/fugue-project/fugue">Fugue</a></li>
<li><a href="https://github.com/ibis-project/ibis">Ibis</a></li>
<li><a href="https://github.com/dlt-hub/dlt">dlt</a></li>
<li><a href="https://github.com/kelsin/mysql-mimic">mysql-mimic</a></li>
<li><a href="https://github.com/pinterest/querybook">Querybook</a></li>
<li><a href="https://github.com/marsupialtail/quokka">Quokka</a></li>

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<style>/*! * Bootstrap Reboot v5.0.0 (https://getbootstrap.com/) * Copyright 2011-2021 The Bootstrap Authors * Copyright 2011-2021 Twitter, Inc. * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE) * Forked from Normalize.css, licensed MIT (https://github.com/necolas/normalize.css/blob/master/LICENSE.md) */*,::after,::before{box-sizing:border-box}@media (prefers-reduced-motion:no-preference){:root{scroll-behavior:smooth}}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Liberation Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";font-size:1rem;font-weight:400;line-height:1.5;color:#212529;background-color:#fff;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}hr{margin:1rem 0;color:inherit;background-color:currentColor;border:0;opacity:.25}hr:not([size]){height:1px}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5rem;font-weight:500;line-height:1.2}h1{font-size:calc(1.375rem + 1.5vw)}@media (min-width:1200px){h1{font-size:2.5rem}}h2{font-size:calc(1.325rem + .9vw)}@media (min-width:1200px){h2{font-size:2rem}}h3{font-size:calc(1.3rem + .6vw)}@media (min-width:1200px){h3{font-size:1.75rem}}h4{font-size:calc(1.275rem + .3vw)}@media (min-width:1200px){h4{font-size:1.5rem}}h5{font-size:1.25rem}h6{font-size:1rem}p{margin-top:0;margin-bottom:1rem}abbr[data-bs-original-title],abbr[title]{-webkit-text-decoration:underline dotted;text-decoration:underline dotted;cursor:help;-webkit-text-decoration-skip-ink:none;text-decoration-skip-ink:none}address{margin-bottom:1rem;font-style:normal;line-height:inherit}ol,ul{padding-left:2rem}dl,ol,ul{margin-top:0;margin-bottom:1rem}ol ol,ol ul,ul ol,ul ul{margin-bottom:0}dt{font-weight:700}dd{margin-bottom:.5rem;margin-left:0}blockquote{margin:0 0 1rem}b,strong{font-weight:bolder}small{font-size:.875em}mark{padding:.2em;background-color:#fcf8e3}sub,sup{position:relative;font-size:.75em;line-height:0;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}a{color:#0d6efd;text-decoration:underline}a:hover{color:#0a58ca}a:not([href]):not([class]),a:not([href]):not([class]):hover{color:inherit;text-decoration:none}code,kbd,pre,samp{font-family:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;font-size:1em;direction:ltr;unicode-bidi:bidi-override}pre{display:block;margin-top:0;margin-bottom:1rem;overflow:auto;font-size:.875em}pre code{font-size:inherit;color:inherit;word-break:normal}code{font-size:.875em;color:#d63384;word-wrap:break-word}a>code{color:inherit}kbd{padding:.2rem .4rem;font-size:.875em;color:#fff;background-color:#212529;border-radius:.2rem}kbd kbd{padding:0;font-size:1em;font-weight:700}figure{margin:0 0 1rem}img,svg{vertical-align:middle}table{caption-side:bottom;border-collapse:collapse}caption{padding-top:.5rem;padding-bottom:.5rem;color:#6c757d;text-align:left}th{text-align:inherit;text-align:-webkit-match-parent}tbody,td,tfoot,th,thead,tr{border-color:inherit;border-style:solid;border-width:0}label{display:inline-block}button{border-radius:0}button:focus:not(:focus-visible){outline:0}button,input,optgroup,select,textarea{margin:0;font-family:inherit;font-size:inherit;line-height:inherit}button,select{text-transform:none}[role=button]{cursor:pointer}select{word-wrap:normal}select:disabled{opacity:1}[list]::-webkit-calendar-picker-indicator{display:none}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]:not(:disabled),[type=reset]:not(:disabled),[type=submit]:not(:disabled),button:not(:disabled){cursor:pointer}::-moz-focus-inner{padding:0;border-style:none}textarea{resize:vertical}fieldset{min-width:0;padding:0;margin:0;border:0}legend{float:left;width:100%;padding:0;margin-bottom:.5rem;font-size:calc(1.275rem + .3vw);line-height:inherit}@media (min-width:1200px){legend{font-size:1.5rem}}legend+*{clear:left}::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-fields-wrapper,::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute,::-webkit-datetime-edit-month-field,::-webkit-datetime-edit-text,::-webkit-datetime-edit-year-field{padding:0}::-webkit-inner-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:textfield}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-color-swatch-wrapper{padding:0}::file-selector-button{font:inherit}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}iframe{border:0}summary{display:list-item;cursor:pointer}progress{vertical-align:baseline}[hidden]{display:none!important}</style>

14
docs/sqlglot/_version.html
View file

@ -3,7 +3,7 @@
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="generator" content="pdoc 15.0.3"/>
<meta name="generator" content="pdoc 15.0.4"/>
<title>sqlglot._version API documentation</title>
<style>/*! * Bootstrap Reboot v5.0.0 (https://getbootstrap.com/) * Copyright 2011-2021 The Bootstrap Authors * Copyright 2011-2021 Twitter, Inc. * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE) * Forked from Normalize.css, licensed MIT (https://github.com/necolas/normalize.css/blob/master/LICENSE.md) */*,::after,::before{box-sizing:border-box}@media (prefers-reduced-motion:no-preference){:root{scroll-behavior:smooth}}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Liberation Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";font-size:1rem;font-weight:400;line-height:1.5;color:#212529;background-color:#fff;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}hr{margin:1rem 0;color:inherit;background-color:currentColor;border:0;opacity:.25}hr:not([size]){height:1px}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5rem;font-weight:500;line-height:1.2}h1{font-size:calc(1.375rem + 1.5vw)}@media (min-width:1200px){h1{font-size:2.5rem}}h2{font-size:calc(1.325rem + .9vw)}@media (min-width:1200px){h2{font-size:2rem}}h3{font-size:calc(1.3rem + .6vw)}@media (min-width:1200px){h3{font-size:1.75rem}}h4{font-size:calc(1.275rem + .3vw)}@media (min-width:1200px){h4{font-size:1.5rem}}h5{font-size:1.25rem}h6{font-size:1rem}p{margin-top:0;margin-bottom:1rem}abbr[data-bs-original-title],abbr[title]{-webkit-text-decoration:underline dotted;text-decoration:underline dotted;cursor:help;-webkit-text-decoration-skip-ink:none;text-decoration-skip-ink:none}address{margin-bottom:1rem;font-style:normal;line-height:inherit}ol,ul{padding-left:2rem}dl,ol,ul{margin-top:0;margin-bottom:1rem}ol ol,ol ul,ul ol,ul ul{margin-bottom:0}dt{font-weight:700}dd{margin-bottom:.5rem;margin-left:0}blockquote{margin:0 0 1rem}b,strong{font-weight:bolder}small{font-size:.875em}mark{padding:.2em;background-color:#fcf8e3}sub,sup{position:relative;font-size:.75em;line-height:0;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}a{color:#0d6efd;text-decoration:underline}a:hover{color:#0a58ca}a:not([href]):not([class]),a:not([href]):not([class]):hover{color:inherit;text-decoration:none}code,kbd,pre,samp{font-family:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;font-size:1em;direction:ltr;unicode-bidi:bidi-override}pre{display:block;margin-top:0;margin-bottom:1rem;overflow:auto;font-size:.875em}pre code{font-size:inherit;color:inherit;word-break:normal}code{font-size:.875em;color:#d63384;word-wrap:break-word}a>code{color:inherit}kbd{padding:.2rem .4rem;font-size:.875em;color:#fff;background-color:#212529;border-radius:.2rem}kbd kbd{padding:0;font-size:1em;font-weight:700}figure{margin:0 0 1rem}img,svg{vertical-align:middle}table{caption-side:bottom;border-collapse:collapse}caption{padding-top:.5rem;padding-bottom:.5rem;color:#6c757d;text-align:left}th{text-align:inherit;text-align:-webkit-match-parent}tbody,td,tfoot,th,thead,tr{border-color:inherit;border-style:solid;border-width:0}label{display:inline-block}button{border-radius:0}button:focus:not(:focus-visible){outline:0}button,input,optgroup,select,textarea{margin:0;font-family:inherit;font-size:inherit;line-height:inherit}button,select{text-transform:none}[role=button]{cursor:pointer}select{word-wrap:normal}select:disabled{opacity:1}[list]::-webkit-calendar-picker-indicator{display:none}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]:not(:disabled),[type=reset]:not(:disabled),[type=submit]:not(:disabled),button:not(:disabled){cursor:pointer}::-moz-focus-inner{padding:0;border-style:none}textarea{resize:vertical}fieldset{min-width:0;padding:0;margin:0;border:0}legend{float:left;width:100%;padding:0;margin-bottom:.5rem;font-size:calc(1.275rem + .3vw);line-height:inherit}@media (min-width:1200px){legend{font-size:1.5rem}}legend+*{clear:left}::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-fields-wrapper,::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute,::-webkit-datetime-edit-month-field,::-webkit-datetime-edit-text,::-webkit-datetime-edit-year-field{padding:0}::-webkit-inner-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:textfield}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-color-swatch-wrapper{padding:0}::file-selector-button{font:inherit}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}iframe{border:0}summary{display:list-item;cursor:pointer}progress{vertical-align:baseline}[hidden]{display:none!important}</style>
@ -84,8 +84,8 @@
</span><span id="L-17"><a href="#L-17"><span class="linenos">17</span></a><span class="n">__version_tuple__</span><span class="p">:</span> <span class="n">VERSION_TUPLE</span>
</span><span id="L-18"><a href="#L-18"><span class="linenos">18</span></a><span class="n">version_tuple</span><span class="p">:</span> <span class="n">VERSION_TUPLE</span>
</span><span id="L-19"><a href="#L-19"><span class="linenos">19</span></a>
</span><span id="L-20"><a href="#L-20"><span class="linenos">20</span></a><span class="n">__version__</span> <span class="o">=</span> <span class="n">version</span> <span class="o">=</span> <span class="s1">&#39;26.25.3&#39;</span>
</span><span id="L-21"><a href="#L-21"><span class="linenos">21</span></a><span class="n">__version_tuple__</span> <span class="o">=</span> <span class="n">version_tuple</span> <span class="o">=</span> <span class="p">(</span><span class="mi">26</span><span class="p">,</span> <span class="mi">25</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
</span><span id="L-20"><a href="#L-20"><span class="linenos">20</span></a><span class="n">__version__</span> <span class="o">=</span> <span class="n">version</span> <span class="o">=</span> <span class="s1">&#39;26.28.0&#39;</span>
</span><span id="L-21"><a href="#L-21"><span class="linenos">21</span></a><span class="n">__version_tuple__</span> <span class="o">=</span> <span class="n">version_tuple</span> <span class="o">=</span> <span class="p">(</span><span class="mi">26</span><span class="p">,</span> <span class="mi">28</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
</span></pre></div>
@ -93,7 +93,7 @@
<section id="__version__">
<div class="attr variable">
<span class="name">__version__</span><span class="annotation">: str</span> =
<span class="default_value">&#39;26.25.3&#39;</span>
<span class="default_value">&#39;26.28.0&#39;</span>
</div>
@ -105,7 +105,7 @@
<section id="__version_tuple__">
<div class="attr variable">
<span class="name">__version_tuple__</span><span class="annotation">: object</span> =
<span class="default_value">(26, 25, 3)</span>
<span class="default_value">(26, 28, 0)</span>
</div>
@ -117,7 +117,7 @@
<section id="version">
<div class="attr variable">
<span class="name">version</span><span class="annotation">: str</span> =
<span class="default_value">&#39;26.25.3&#39;</span>
<span class="default_value">&#39;26.28.0&#39;</span>
</div>
@ -129,7 +129,7 @@
<section id="version_tuple">
<div class="attr variable">
<span class="name">version_tuple</span><span class="annotation">: object</span> =
<span class="default_value">(26, 25, 3)</span>
<span class="default_value">(26, 28, 0)</span>
</div>

60
docs/sqlglot/dialects.html
View file

@ -3,7 +3,7 @@
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="generator" content="pdoc 15.0.3"/>
<meta name="generator" content="pdoc 15.0.4"/>
<title>sqlglot.dialects API documentation</title>
<style>/*! * Bootstrap Reboot v5.0.0 (https://getbootstrap.com/) * Copyright 2011-2021 The Bootstrap Authors * Copyright 2011-2021 Twitter, Inc. * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE) * Forked from Normalize.css, licensed MIT (https://github.com/necolas/normalize.css/blob/master/LICENSE.md) */*,::after,::before{box-sizing:border-box}@media (prefers-reduced-motion:no-preference){:root{scroll-behavior:smooth}}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Liberation Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";font-size:1rem;font-weight:400;line-height:1.5;color:#212529;background-color:#fff;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}hr{margin:1rem 0;color:inherit;background-color:currentColor;border:0;opacity:.25}hr:not([size]){height:1px}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5rem;font-weight:500;line-height:1.2}h1{font-size:calc(1.375rem + 1.5vw)}@media (min-width:1200px){h1{font-size:2.5rem}}h2{font-size:calc(1.325rem + .9vw)}@media (min-width:1200px){h2{font-size:2rem}}h3{font-size:calc(1.3rem + .6vw)}@media (min-width:1200px){h3{font-size:1.75rem}}h4{font-size:calc(1.275rem + .3vw)}@media (min-width:1200px){h4{font-size:1.5rem}}h5{font-size:1.25rem}h6{font-size:1rem}p{margin-top:0;margin-bottom:1rem}abbr[data-bs-original-title],abbr[title]{-webkit-text-decoration:underline dotted;text-decoration:underline dotted;cursor:help;-webkit-text-decoration-skip-ink:none;text-decoration-skip-ink:none}address{margin-bottom:1rem;font-style:normal;line-height:inherit}ol,ul{padding-left:2rem}dl,ol,ul{margin-top:0;margin-bottom:1rem}ol ol,ol ul,ul ol,ul ul{margin-bottom:0}dt{font-weight:700}dd{margin-bottom:.5rem;margin-left:0}blockquote{margin:0 0 1rem}b,strong{font-weight:bolder}small{font-size:.875em}mark{padding:.2em;background-color:#fcf8e3}sub,sup{position:relative;font-size:.75em;line-height:0;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}a{color:#0d6efd;text-decoration:underline}a:hover{color:#0a58ca}a:not([href]):not([class]),a:not([href]):not([class]):hover{color:inherit;text-decoration:none}code,kbd,pre,samp{font-family:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;font-size:1em;direction:ltr;unicode-bidi:bidi-override}pre{display:block;margin-top:0;margin-bottom:1rem;overflow:auto;font-size:.875em}pre code{font-size:inherit;color:inherit;word-break:normal}code{font-size:.875em;color:#d63384;word-wrap:break-word}a>code{color:inherit}kbd{padding:.2rem .4rem;font-size:.875em;color:#fff;background-color:#212529;border-radius:.2rem}kbd kbd{padding:0;font-size:1em;font-weight:700}figure{margin:0 0 1rem}img,svg{vertical-align:middle}table{caption-side:bottom;border-collapse:collapse}caption{padding-top:.5rem;padding-bottom:.5rem;color:#6c757d;text-align:left}th{text-align:inherit;text-align:-webkit-match-parent}tbody,td,tfoot,th,thead,tr{border-color:inherit;border-style:solid;border-width:0}label{display:inline-block}button{border-radius:0}button:focus:not(:focus-visible){outline:0}button,input,optgroup,select,textarea{margin:0;font-family:inherit;font-size:inherit;line-height:inherit}button,select{text-transform:none}[role=button]{cursor:pointer}select{word-wrap:normal}select:disabled{opacity:1}[list]::-webkit-calendar-picker-indicator{display:none}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]:not(:disabled),[type=reset]:not(:disabled),[type=submit]:not(:disabled),button:not(:disabled){cursor:pointer}::-moz-focus-inner{padding:0;border-style:none}textarea{resize:vertical}fieldset{min-width:0;padding:0;margin:0;border:0}legend{float:left;width:100%;padding:0;margin-bottom:.5rem;font-size:calc(1.275rem + .3vw);line-height:inherit}@media (min-width:1200px){legend{font-size:1.5rem}}legend+*{clear:left}::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-fields-wrapper,::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute,::-webkit-datetime-edit-month-field,::-webkit-datetime-edit-text,::-webkit-datetime-edit-year-field{padding:0}::-webkit-inner-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:textfield}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-color-swatch-wrapper{padding:0}::file-selector-button{font:inherit}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}iframe{border:0}summary{display:list-item;cursor:pointer}progress{vertical-align:baseline}[hidden]{display:none!important}</style>
@ -359,7 +359,7 @@ dialect implementations in order to understand how their various components can
<section id="Athena">
<div class="attr variable">
<span class="name">Athena</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571796728384&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998209036672&#39;&gt;</span>
</div>
@ -371,7 +371,7 @@ dialect implementations in order to understand how their various components can
<section id="BigQuery">
<div class="attr variable">
<span class="name">BigQuery</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571796081632&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998207084000&#39;&gt;</span>
</div>
@ -383,7 +383,7 @@ dialect implementations in order to understand how their various components can
<section id="ClickHouse">
<div class="attr variable">
<span class="name">ClickHouse</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571798395520&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998207095232&#39;&gt;</span>
</div>
@ -395,7 +395,7 @@ dialect implementations in order to understand how their various components can
<section id="Databricks">
<div class="attr variable">
<span class="name">Databricks</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571786944400&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998202197424&#39;&gt;</span>
</div>
@ -407,7 +407,7 @@ dialect implementations in order to understand how their various components can
<section id="Doris">
<div class="attr variable">
<span class="name">Doris</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571799701632&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998213879552&#39;&gt;</span>
</div>
@ -419,7 +419,7 @@ dialect implementations in order to understand how their various components can
<section id="Drill">
<div class="attr variable">
<span class="name">Drill</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571798507328&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998213878592&#39;&gt;</span>
</div>
@ -431,7 +431,7 @@ dialect implementations in order to understand how their various components can
<section id="Druid">
<div class="attr variable">
<span class="name">Druid</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571784920080&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998218182256&#39;&gt;</span>
</div>
@ -443,7 +443,7 @@ dialect implementations in order to understand how their various components can
<section id="DuckDB">
<div class="attr variable">
<span class="name">DuckDB</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571784909808&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998218189216&#39;&gt;</span>
</div>
@ -455,7 +455,7 @@ dialect implementations in order to understand how their various components can
<section id="Dune">
<div class="attr variable">
<span class="name">Dune</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571785635072&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998204697984&#39;&gt;</span>
</div>
@ -467,7 +467,7 @@ dialect implementations in order to understand how their various components can
<section id="Hive">
<div class="attr variable">
<span class="name">Hive</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571796939552&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998218084672&#39;&gt;</span>
</div>
@ -479,7 +479,7 @@ dialect implementations in order to understand how their various components can
<section id="Materialize">
<div class="attr variable">
<span class="name">Materialize</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571796933216&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998210512240&#39;&gt;</span>
</div>
@ -491,7 +491,7 @@ dialect implementations in order to understand how their various components can
<section id="MySQL">
<div class="attr variable">
<span class="name">MySQL</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571802007920&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998210508736&#39;&gt;</span>
</div>
@ -503,7 +503,7 @@ dialect implementations in order to understand how their various components can
<section id="Oracle">
<div class="attr variable">
<span class="name">Oracle</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571798015520&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998204295152&#39;&gt;</span>
</div>
@ -515,7 +515,7 @@ dialect implementations in order to understand how their various components can
<section id="Postgres">
<div class="attr variable">
<span class="name">Postgres</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571787331280&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998213015728&#39;&gt;</span>
</div>
@ -527,7 +527,7 @@ dialect implementations in order to understand how their various components can
<section id="Presto">
<div class="attr variable">
<span class="name">Presto</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571792711184&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998207103072&#39;&gt;</span>
</div>
@ -539,7 +539,7 @@ dialect implementations in order to understand how their various components can
<section id="PRQL">
<div class="attr variable">
<span class="name">PRQL</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571790276352&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998218107056&#39;&gt;</span>
</div>
@ -551,7 +551,7 @@ dialect implementations in order to understand how their various components can
<section id="Redshift">
<div class="attr variable">
<span class="name">Redshift</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571796486896&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998213994336&#39;&gt;</span>
</div>
@ -563,7 +563,7 @@ dialect implementations in order to understand how their various components can
<section id="RisingWave">
<div class="attr variable">
<span class="name">RisingWave</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571796480032&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998213988768&#39;&gt;</span>
</div>
@ -575,7 +575,7 @@ dialect implementations in order to understand how their various components can
<section id="Snowflake">
<div class="attr variable">
<span class="name">Snowflake</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571798302544&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998218915888&#39;&gt;</span>
</div>
@ -587,7 +587,7 @@ dialect implementations in order to understand how their various components can
<section id="Spark">
<div class="attr variable">
<span class="name">Spark</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571798306144&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998218919824&#39;&gt;</span>
</div>
@ -599,7 +599,7 @@ dialect implementations in order to understand how their various components can
<section id="Spark2">
<div class="attr variable">
<span class="name">Spark2</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571795407632&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998209784848&#39;&gt;</span>
</div>
@ -611,7 +611,7 @@ dialect implementations in order to understand how their various components can
<section id="SQLite">
<div class="attr variable">
<span class="name">SQLite</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571791304560&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998214271904&#39;&gt;</span>
</div>
@ -623,7 +623,7 @@ dialect implementations in order to understand how their various components can
<section id="StarRocks">
<div class="attr variable">
<span class="name">StarRocks</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571795611968&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998214272816&#39;&gt;</span>
</div>
@ -635,7 +635,7 @@ dialect implementations in order to understand how their various components can
<section id="Tableau">
<div class="attr variable">
<span class="name">Tableau</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571793529520&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998213207136&#39;&gt;</span>
</div>
@ -647,7 +647,7 @@ dialect implementations in order to understand how their various components can
<section id="Teradata">
<div class="attr variable">
<span class="name">Teradata</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571785251376&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998218430752&#39;&gt;</span>
</div>
@ -659,7 +659,7 @@ dialect implementations in order to understand how their various components can
<section id="Trino">
<div class="attr variable">
<span class="name">Trino</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571785259248&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998217361760&#39;&gt;</span>
</div>
@ -671,7 +671,7 @@ dialect implementations in order to understand how their various components can
<section id="TSQL">
<div class="attr variable">
<span class="name">TSQL</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571785300000&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998218034608&#39;&gt;</span>
</div>
@ -683,7 +683,7 @@ dialect implementations in order to understand how their various components can
<section id="Dialect">
<div class="attr variable">
<span class="name">Dialect</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571785307920&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998218028656&#39;&gt;</span>
</div>
@ -695,7 +695,7 @@ dialect implementations in order to understand how their various components can
<section id="Dialects">
<div class="attr variable">
<span class="name">Dialects</span> =
<span class="default_value">&lt;MagicMock id=&#39;140571785332288&#39;&gt;</span>
<span class="default_value">&lt;MagicMock id=&#39;139998209690880&#39;&gt;</span>
</div>

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<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="generator" content="pdoc 15.0.3"/>
<meta name="generator" content="pdoc 15.0.4"/>
<title>sqlglot.dialects.druid API documentation</title>
<style>/*! * Bootstrap Reboot v5.0.0 (https://getbootstrap.com/) * Copyright 2011-2021 The Bootstrap Authors * Copyright 2011-2021 Twitter, Inc. * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE) * Forked from Normalize.css, licensed MIT (https://github.com/necolas/normalize.css/blob/master/LICENSE.md) */*,::after,::before{box-sizing:border-box}@media (prefers-reduced-motion:no-preference){:root{scroll-behavior:smooth}}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Liberation Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";font-size:1rem;font-weight:400;line-height:1.5;color:#212529;background-color:#fff;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}hr{margin:1rem 0;color:inherit;background-color:currentColor;border:0;opacity:.25}hr:not([size]){height:1px}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5rem;font-weight:500;line-height:1.2}h1{font-size:calc(1.375rem + 1.5vw)}@media (min-width:1200px){h1{font-size:2.5rem}}h2{font-size:calc(1.325rem + .9vw)}@media (min-width:1200px){h2{font-size:2rem}}h3{font-size:calc(1.3rem + .6vw)}@media (min-width:1200px){h3{font-size:1.75rem}}h4{font-size:calc(1.275rem + .3vw)}@media (min-width:1200px){h4{font-size:1.5rem}}h5{font-size:1.25rem}h6{font-size:1rem}p{margin-top:0;margin-bottom:1rem}abbr[data-bs-original-title],abbr[title]{-webkit-text-decoration:underline dotted;text-decoration:underline dotted;cursor:help;-webkit-text-decoration-skip-ink:none;text-decoration-skip-ink:none}address{margin-bottom:1rem;font-style:normal;line-height:inherit}ol,ul{padding-left:2rem}dl,ol,ul{margin-top:0;margin-bottom:1rem}ol ol,ol ul,ul ol,ul ul{margin-bottom:0}dt{font-weight:700}dd{margin-bottom:.5rem;margin-left:0}blockquote{margin:0 0 1rem}b,strong{font-weight:bolder}small{font-size:.875em}mark{padding:.2em;background-color:#fcf8e3}sub,sup{position:relative;font-size:.75em;line-height:0;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}a{color:#0d6efd;text-decoration:underline}a:hover{color:#0a58ca}a:not([href]):not([class]),a:not([href]):not([class]):hover{color:inherit;text-decoration:none}code,kbd,pre,samp{font-family:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;font-size:1em;direction:ltr;unicode-bidi:bidi-override}pre{display:block;margin-top:0;margin-bottom:1rem;overflow:auto;font-size:.875em}pre code{font-size:inherit;color:inherit;word-break:normal}code{font-size:.875em;color:#d63384;word-wrap:break-word}a>code{color:inherit}kbd{padding:.2rem .4rem;font-size:.875em;color:#fff;background-color:#212529;border-radius:.2rem}kbd kbd{padding:0;font-size:1em;font-weight:700}figure{margin:0 0 1rem}img,svg{vertical-align:middle}table{caption-side:bottom;border-collapse:collapse}caption{padding-top:.5rem;padding-bottom:.5rem;color:#6c757d;text-align:left}th{text-align:inherit;text-align:-webkit-match-parent}tbody,td,tfoot,th,thead,tr{border-color:inherit;border-style:solid;border-width:0}label{display:inline-block}button{border-radius:0}button:focus:not(:focus-visible){outline:0}button,input,optgroup,select,textarea{margin:0;font-family:inherit;font-size:inherit;line-height:inherit}button,select{text-transform:none}[role=button]{cursor:pointer}select{word-wrap:normal}select:disabled{opacity:1}[list]::-webkit-calendar-picker-indicator{display:none}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]:not(:disabled),[type=reset]:not(:disabled),[type=submit]:not(:disabled),button:not(:disabled){cursor:pointer}::-moz-focus-inner{padding:0;border-style:none}textarea{resize:vertical}fieldset{min-width:0;padding:0;margin:0;border:0}legend{float:left;width:100%;padding:0;margin-bottom:.5rem;font-size:calc(1.275rem + .3vw);line-height:inherit}@media (min-width:1200px){legend{font-size:1.5rem}}legend+*{clear:left}::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-fields-wrapper,::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute,::-webkit-datetime-edit-month-field,::-webkit-datetime-edit-text,::-webkit-datetime-edit-year-field{padding:0}::-webkit-inner-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:textfield}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-color-swatch-wrapper{padding:0}::file-selector-button{font:inherit}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}iframe{border:0}summary{display:list-item;cursor:pointer}progress{vertical-align:baseline}[hidden]{display:none!important}</style>
@ -798,7 +798,6 @@ Default: True</li>
<dd id="Druid.Generator.generatedasrowcolumnconstraint_sql" class="function"><a href="../generator.html#Generator.generatedasrowcolumnconstraint_sql">generatedasrowcolumnconstraint_sql</a></dd>
<dd id="Druid.Generator.periodforsystemtimeconstraint_sql" class="function"><a href="../generator.html#Generator.periodforsystemtimeconstraint_sql">periodforsystemtimeconstraint_sql</a></dd>
<dd id="Druid.Generator.notnullcolumnconstraint_sql" class="function"><a href="../generator.html#Generator.notnullcolumnconstraint_sql">notnullcolumnconstraint_sql</a></dd>
<dd id="Druid.Generator.transformcolumnconstraint_sql" class="function"><a href="../generator.html#Generator.transformcolumnconstraint_sql">transformcolumnconstraint_sql</a></dd>
<dd id="Druid.Generator.primarykeycolumnconstraint_sql" class="function"><a href="../generator.html#Generator.primarykeycolumnconstraint_sql">primarykeycolumnconstraint_sql</a></dd>
<dd id="Druid.Generator.uniquecolumnconstraint_sql" class="function"><a href="../generator.html#Generator.uniquecolumnconstraint_sql">uniquecolumnconstraint_sql</a></dd>
<dd id="Druid.Generator.createable_sql" class="function"><a href="../generator.html#Generator.createable_sql">createable_sql</a></dd>
@ -1010,6 +1009,7 @@ Default: True</li>
<dd id="Druid.Generator.add_column_sql" class="function"><a href="../generator.html#Generator.add_column_sql">add_column_sql</a></dd>
<dd id="Druid.Generator.droppartition_sql" class="function"><a href="../generator.html#Generator.droppartition_sql">droppartition_sql</a></dd>
<dd id="Druid.Generator.addconstraint_sql" class="function"><a href="../generator.html#Generator.addconstraint_sql">addconstraint_sql</a></dd>
<dd id="Druid.Generator.addpartition_sql" class="function"><a href="../generator.html#Generator.addpartition_sql">addpartition_sql</a></dd>
<dd id="Druid.Generator.distinct_sql" class="function"><a href="../generator.html#Generator.distinct_sql">distinct_sql</a></dd>
<dd id="Druid.Generator.ignorenulls_sql" class="function"><a href="../generator.html#Generator.ignorenulls_sql">ignorenulls_sql</a></dd>
<dd id="Druid.Generator.respectnulls_sql" class="function"><a href="../generator.html#Generator.respectnulls_sql">respectnulls_sql</a></dd>

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<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="generator" content="pdoc 15.0.3"/>
<meta name="generator" content="pdoc 15.0.4"/>
<title>sqlglot.dialects.dune API documentation</title>
<style>/*! * Bootstrap Reboot v5.0.0 (https://getbootstrap.com/) * Copyright 2011-2021 The Bootstrap Authors * Copyright 2011-2021 Twitter, Inc. * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE) * Forked from Normalize.css, licensed MIT (https://github.com/necolas/normalize.css/blob/master/LICENSE.md) */*,::after,::before{box-sizing:border-box}@media (prefers-reduced-motion:no-preference){:root{scroll-behavior:smooth}}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Liberation Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";font-size:1rem;font-weight:400;line-height:1.5;color:#212529;background-color:#fff;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}hr{margin:1rem 0;color:inherit;background-color:currentColor;border:0;opacity:.25}hr:not([size]){height:1px}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5rem;font-weight:500;line-height:1.2}h1{font-size:calc(1.375rem + 1.5vw)}@media (min-width:1200px){h1{font-size:2.5rem}}h2{font-size:calc(1.325rem + .9vw)}@media (min-width:1200px){h2{font-size:2rem}}h3{font-size:calc(1.3rem + .6vw)}@media (min-width:1200px){h3{font-size:1.75rem}}h4{font-size:calc(1.275rem + .3vw)}@media (min-width:1200px){h4{font-size:1.5rem}}h5{font-size:1.25rem}h6{font-size:1rem}p{margin-top:0;margin-bottom:1rem}abbr[data-bs-original-title],abbr[title]{-webkit-text-decoration:underline dotted;text-decoration:underline dotted;cursor:help;-webkit-text-decoration-skip-ink:none;text-decoration-skip-ink:none}address{margin-bottom:1rem;font-style:normal;line-height:inherit}ol,ul{padding-left:2rem}dl,ol,ul{margin-top:0;margin-bottom:1rem}ol ol,ol ul,ul ol,ul ul{margin-bottom:0}dt{font-weight:700}dd{margin-bottom:.5rem;margin-left:0}blockquote{margin:0 0 1rem}b,strong{font-weight:bolder}small{font-size:.875em}mark{padding:.2em;background-color:#fcf8e3}sub,sup{position:relative;font-size:.75em;line-height:0;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}a{color:#0d6efd;text-decoration:underline}a:hover{color:#0a58ca}a:not([href]):not([class]),a:not([href]):not([class]):hover{color:inherit;text-decoration:none}code,kbd,pre,samp{font-family:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;font-size:1em;direction:ltr;unicode-bidi:bidi-override}pre{display:block;margin-top:0;margin-bottom:1rem;overflow:auto;font-size:.875em}pre code{font-size:inherit;color:inherit;word-break:normal}code{font-size:.875em;color:#d63384;word-wrap:break-word}a>code{color:inherit}kbd{padding:.2rem .4rem;font-size:.875em;color:#fff;background-color:#212529;border-radius:.2rem}kbd kbd{padding:0;font-size:1em;font-weight:700}figure{margin:0 0 1rem}img,svg{vertical-align:middle}table{caption-side:bottom;border-collapse:collapse}caption{padding-top:.5rem;padding-bottom:.5rem;color:#6c757d;text-align:left}th{text-align:inherit;text-align:-webkit-match-parent}tbody,td,tfoot,th,thead,tr{border-color:inherit;border-style:solid;border-width:0}label{display:inline-block}button{border-radius:0}button:focus:not(:focus-visible){outline:0}button,input,optgroup,select,textarea{margin:0;font-family:inherit;font-size:inherit;line-height:inherit}button,select{text-transform:none}[role=button]{cursor:pointer}select{word-wrap:normal}select:disabled{opacity:1}[list]::-webkit-calendar-picker-indicator{display:none}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]:not(:disabled),[type=reset]:not(:disabled),[type=submit]:not(:disabled),button:not(:disabled){cursor:pointer}::-moz-focus-inner{padding:0;border-style:none}textarea{resize:vertical}fieldset{min-width:0;padding:0;margin:0;border:0}legend{float:left;width:100%;padding:0;margin-bottom:.5rem;font-size:calc(1.275rem + .3vw);line-height:inherit}@media (min-width:1200px){legend{font-size:1.5rem}}legend+*{clear:left}::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-fields-wrapper,::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute,::-webkit-datetime-edit-month-field,::-webkit-datetime-edit-text,::-webkit-datetime-edit-year-field{padding:0}::-webkit-inner-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:textfield}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-color-swatch-wrapper{padding:0}::file-selector-button{font:inherit}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}iframe{border:0}summary{display:list-item;cursor:pointer}progress{vertical-align:baseline}[hidden]{display:none!important}</style>
@ -852,7 +852,6 @@ Default: True</li>
<dd id="Dune.Generator.generatedasrowcolumnconstraint_sql" class="function"><a href="../generator.html#Generator.generatedasrowcolumnconstraint_sql">generatedasrowcolumnconstraint_sql</a></dd>
<dd id="Dune.Generator.periodforsystemtimeconstraint_sql" class="function"><a href="../generator.html#Generator.periodforsystemtimeconstraint_sql">periodforsystemtimeconstraint_sql</a></dd>
<dd id="Dune.Generator.notnullcolumnconstraint_sql" class="function"><a href="../generator.html#Generator.notnullcolumnconstraint_sql">notnullcolumnconstraint_sql</a></dd>
<dd id="Dune.Generator.transformcolumnconstraint_sql" class="function"><a href="../generator.html#Generator.transformcolumnconstraint_sql">transformcolumnconstraint_sql</a></dd>
<dd id="Dune.Generator.primarykeycolumnconstraint_sql" class="function"><a href="../generator.html#Generator.primarykeycolumnconstraint_sql">primarykeycolumnconstraint_sql</a></dd>
<dd id="Dune.Generator.uniquecolumnconstraint_sql" class="function"><a href="../generator.html#Generator.uniquecolumnconstraint_sql">uniquecolumnconstraint_sql</a></dd>
<dd id="Dune.Generator.createable_sql" class="function"><a href="../generator.html#Generator.createable_sql">createable_sql</a></dd>
@ -1058,6 +1057,7 @@ Default: True</li>
<dd id="Dune.Generator.add_column_sql" class="function"><a href="../generator.html#Generator.add_column_sql">add_column_sql</a></dd>
<dd id="Dune.Generator.droppartition_sql" class="function"><a href="../generator.html#Generator.droppartition_sql">droppartition_sql</a></dd>
<dd id="Dune.Generator.addconstraint_sql" class="function"><a href="../generator.html#Generator.addconstraint_sql">addconstraint_sql</a></dd>
<dd id="Dune.Generator.addpartition_sql" class="function"><a href="../generator.html#Generator.addpartition_sql">addpartition_sql</a></dd>
<dd id="Dune.Generator.distinct_sql" class="function"><a href="../generator.html#Generator.distinct_sql">distinct_sql</a></dd>
<dd id="Dune.Generator.ignorenulls_sql" class="function"><a href="../generator.html#Generator.ignorenulls_sql">ignorenulls_sql</a></dd>
<dd id="Dune.Generator.respectnulls_sql" class="function"><a href="../generator.html#Generator.respectnulls_sql">respectnulls_sql</a></dd>

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<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="generator" content="pdoc 15.0.3"/>
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@ -2003,7 +2003,7 @@ belong to some totally-ordered set.</p>
<section id="DATE_UNITS">
<div class="attr variable">
<span class="name">DATE_UNITS</span> =
<span class="default_value">{&#39;day&#39;, &#39;year&#39;, &#39;year_month&#39;, &#39;quarter&#39;, &#39;week&#39;, &#39;month&#39;}</span>
<span class="default_value">{&#39;year&#39;, &#39;year_month&#39;, &#39;month&#39;, &#39;week&#39;, &#39;day&#39;, &#39;quarter&#39;}</span>
</div>

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@ -641,7 +641,7 @@
<div class="attr variable">
<span class="name">ALL_JSON_PATH_PARTS</span> =
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docs/sqlglot/optimizer/eliminate_subqueries.html
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docs/sqlglot/optimizer/isolate_table_selects.html
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docs/sqlglot/optimizer/merge_subqueries.html
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@ -581,7 +581,7 @@ queries if it would result in multiple table selects in a single query:</p>
<div class="attr variable">
<span class="name">UNMERGABLE_ARGS</span> =
<input id="UNMERGABLE_ARGS-view-value" class="view-value-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
<label class="view-value-button pdoc-button" for="UNMERGABLE_ARGS-view-value"></label><span class="default_value">{&#39;options&#39;, &#39;qualify&#39;, &#39;group&#39;, &#39;locks&#39;, &#39;having&#39;, &#39;prewhere&#39;, &#39;kind&#39;, &#39;offset&#39;, &#39;cluster&#39;, &#39;distinct&#39;, &#39;operation_modifiers&#39;, &#39;settings&#39;, &#39;windows&#39;, &#39;limit&#39;, &#39;match&#39;, &#39;into&#39;, &#39;laterals&#39;, &#39;distribute&#39;, &#39;format&#39;, &#39;sample&#39;, &#39;connect&#39;, &#39;with&#39;, &#39;sort&#39;, &#39;pivots&#39;}</span>
<label class="view-value-button pdoc-button" for="UNMERGABLE_ARGS-view-value"></label><span class="default_value">{&#39;windows&#39;, &#39;limit&#39;, &#39;settings&#39;, &#39;cluster&#39;, &#39;offset&#39;, &#39;options&#39;, &#39;format&#39;, &#39;connect&#39;, &#39;locks&#39;, &#39;distinct&#39;, &#39;distribute&#39;, &#39;pivots&#39;, &#39;operation_modifiers&#39;, &#39;having&#39;, &#39;sample&#39;, &#39;kind&#39;, &#39;prewhere&#39;, &#39;sort&#39;, &#39;match&#39;, &#39;group&#39;, &#39;with&#39;, &#39;qualify&#39;, &#39;laterals&#39;, &#39;into&#39;}</span>
</div>

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docs/sqlglot/optimizer/normalize.html
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docs/sqlglot/optimizer/qualify_columns.html
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docs/sqlglot/optimizer/qualify_tables.html
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docs/sqlglot/optimizer/scope.html
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docs/sqlglot/optimizer/simplify.html
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@ -3,7 +3,7 @@
<head>
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<title>sqlglot.optimizer.simplify API documentation</title>
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@ -3201,7 +3201,7 @@ prefix are statically known.</p>
<div class="attr variable">
<span class="name">DATETRUNC_COMPARISONS</span> =
<input id="DATETRUNC_COMPARISONS-view-value" class="view-value-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
<label class="view-value-button pdoc-button" for="DATETRUNC_COMPARISONS-view-value"></label><span class="default_value">{&lt;class &#39;<a href="../expressions.html#LT">sqlglot.expressions.LT</a>&#39;&gt;, &lt;class &#39;<a href="../expressions.html#GTE">sqlglot.expressions.GTE</a>&#39;&gt;, &lt;class &#39;<a href="../expressions.html#EQ">sqlglot.expressions.EQ</a>&#39;&gt;, &lt;class &#39;<a href="../expressions.html#LTE">sqlglot.expressions.LTE</a>&#39;&gt;, &lt;class &#39;<a href="../expressions.html#NEQ">sqlglot.expressions.NEQ</a>&#39;&gt;, &lt;class &#39;<a href="../expressions.html#GT">sqlglot.expressions.GT</a>&#39;&gt;, &lt;class &#39;<a href="../expressions.html#In">sqlglot.expressions.In</a>&#39;&gt;}</span>
<label class="view-value-button pdoc-button" for="DATETRUNC_COMPARISONS-view-value"></label><span class="default_value">{&lt;class &#39;<a href="../expressions.html#GT">sqlglot.expressions.GT</a>&#39;&gt;, &lt;class &#39;<a href="../expressions.html#In">sqlglot.expressions.In</a>&#39;&gt;, &lt;class &#39;<a href="../expressions.html#LT">sqlglot.expressions.LT</a>&#39;&gt;, &lt;class &#39;<a href="../expressions.html#NEQ">sqlglot.expressions.NEQ</a>&#39;&gt;, &lt;class &#39;<a href="../expressions.html#EQ">sqlglot.expressions.EQ</a>&#39;&gt;, &lt;class &#39;<a href="../expressions.html#GTE">sqlglot.expressions.GTE</a>&#39;&gt;, &lt;class &#39;<a href="../expressions.html#LTE">sqlglot.expressions.LTE</a>&#39;&gt;}</span>
</div>
@ -3285,7 +3285,7 @@ prefix are statically known.</p>
<section id="JOINS">
<div class="attr variable">
<span class="name">JOINS</span> =
<span class="default_value">{(&#39;&#39;, &#39;&#39;), (&#39;RIGHT&#39;, &#39;OUTER&#39;), (&#39;RIGHT&#39;, &#39;&#39;), (&#39;&#39;, &#39;INNER&#39;)}</span>
<span class="default_value">{(&#39;&#39;, &#39;INNER&#39;), (&#39;RIGHT&#39;, &#39;OUTER&#39;), (&#39;RIGHT&#39;, &#39;&#39;), (&#39;&#39;, &#39;&#39;)}</span>
</div>

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<title>sqlglot.optimizer.unnest_subqueries API documentation</title>
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docs/sqlglot/planner.html
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<meta name="generator" content="pdoc 15.0.3"/>
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docs/sqlglot/schema.html
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docs/sqlglot/tokens.html
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@ -9516,7 +9516,7 @@
<div class="attr variable">
<span class="name">TOKENS_PRECEDING_HINT</span> =
<input id="Tokenizer.TOKENS_PRECEDING_HINT-view-value" class="view-value-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
<label class="view-value-button pdoc-button" for="Tokenizer.TOKENS_PRECEDING_HINT-view-value"></label><span class="default_value">{&lt;<a href="#TokenType.SELECT">TokenType.SELECT</a>: &#39;SELECT&#39;&gt;, &lt;<a href="#TokenType.INSERT">TokenType.INSERT</a>: &#39;INSERT&#39;&gt;, &lt;<a href="#TokenType.UPDATE">TokenType.UPDATE</a>: &#39;UPDATE&#39;&gt;, &lt;<a href="#TokenType.DELETE">TokenType.DELETE</a>: &#39;DELETE&#39;&gt;}</span>
<label class="view-value-button pdoc-button" for="Tokenizer.TOKENS_PRECEDING_HINT-view-value"></label><span class="default_value">{&lt;<a href="#TokenType.DELETE">TokenType.DELETE</a>: &#39;DELETE&#39;&gt;, &lt;<a href="#TokenType.SELECT">TokenType.SELECT</a>: &#39;SELECT&#39;&gt;, &lt;<a href="#TokenType.INSERT">TokenType.INSERT</a>: &#39;INSERT&#39;&gt;, &lt;<a href="#TokenType.UPDATE">TokenType.UPDATE</a>: &#39;UPDATE&#39;&gt;}</span>
</div>
@ -9555,7 +9555,7 @@
<div class="attr variable">
<span class="name">COMMANDS</span> =
<input id="Tokenizer.COMMANDS-view-value" class="view-value-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1">
<label class="view-value-button pdoc-button" for="Tokenizer.COMMANDS-view-value"></label><span class="default_value">{&lt;<a href="#TokenType.EXECUTE">TokenType.EXECUTE</a>: &#39;EXECUTE&#39;&gt;, &lt;<a href="#TokenType.SHOW">TokenType.SHOW</a>: &#39;SHOW&#39;&gt;, &lt;<a href="#TokenType.RENAME">TokenType.RENAME</a>: &#39;RENAME&#39;&gt;, &lt;<a href="#TokenType.COMMAND">TokenType.COMMAND</a>: &#39;COMMAND&#39;&gt;, &lt;<a href="#TokenType.FETCH">TokenType.FETCH</a>: &#39;FETCH&#39;&gt;}</span>
<label class="view-value-button pdoc-button" for="Tokenizer.COMMANDS-view-value"></label><span class="default_value">{&lt;<a href="#TokenType.SHOW">TokenType.SHOW</a>: &#39;SHOW&#39;&gt;, &lt;<a href="#TokenType.COMMAND">TokenType.COMMAND</a>: &#39;COMMAND&#39;&gt;, &lt;<a href="#TokenType.EXECUTE">TokenType.EXECUTE</a>: &#39;EXECUTE&#39;&gt;, &lt;<a href="#TokenType.RENAME">TokenType.RENAME</a>: &#39;RENAME&#39;&gt;, &lt;<a href="#TokenType.FETCH">TokenType.FETCH</a>: &#39;FETCH&#39;&gt;}</span>
</div>

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@ -978,173 +978,182 @@
</span><span id="L-842"><a href="#L-842"><span class="linenos"> 842</span></a>
</span><span id="L-843"><a href="#L-843"><span class="linenos"> 843</span></a>
</span><span id="L-844"><a href="#L-844"><span class="linenos"> 844</span></a><span class="k">def</span><span class="w"> </span><span class="nf">eliminate_join_marks</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
</span><span id="L-845"><a href="#L-845"><span class="linenos"> 845</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="L-846"><a href="#L-846"><span class="linenos"> 846</span></a><span class="sd"> Remove join marks from an AST. This rule assumes that all marked columns are qualified.</span>
</span><span id="L-847"><a href="#L-847"><span class="linenos"> 847</span></a><span class="sd"> If this does not hold for a query, consider running `sqlglot.optimizer.qualify` first.</span>
</span><span id="L-845"><a href="#L-845"><span class="linenos"> 845</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;https://docs.oracle.com/cd/B19306_01/server.102/b14200/queries006.htm#sthref3178</span>
</span><span id="L-846"><a href="#L-846"><span class="linenos"> 846</span></a>
</span><span id="L-847"><a href="#L-847"><span class="linenos"> 847</span></a><span class="sd"> 1. You cannot specify the (+) operator in a query block that also contains FROM clause join syntax.</span>
</span><span id="L-848"><a href="#L-848"><span class="linenos"> 848</span></a>
</span><span id="L-849"><a href="#L-849"><span class="linenos"> 849</span></a><span class="sd"> For example,</span>
</span><span id="L-850"><a href="#L-850"><span class="linenos"> 850</span></a><span class="sd"> SELECT * FROM a, b WHERE a.id = b.id(+) -- ... is converted to</span>
</span><span id="L-851"><a href="#L-851"><span class="linenos"> 851</span></a><span class="sd"> SELECT * FROM a LEFT JOIN b ON a.id = b.id -- this</span>
</span><span id="L-849"><a href="#L-849"><span class="linenos"> 849</span></a><span class="sd"> 2. The (+) operator can appear only in the WHERE clause or, in the context of left-correlation (that is, when specifying the TABLE clause) in the FROM clause, and can be applied only to a column of a table or view.</span>
</span><span id="L-850"><a href="#L-850"><span class="linenos"> 850</span></a>
</span><span id="L-851"><a href="#L-851"><span class="linenos"> 851</span></a><span class="sd"> The (+) operator does not produce an outer join if you specify one table in the outer query and the other table in an inner query.</span>
</span><span id="L-852"><a href="#L-852"><span class="linenos"> 852</span></a>
</span><span id="L-853"><a href="#L-853"><span class="linenos"> 853</span></a><span class="sd"> Args:</span>
</span><span id="L-854"><a href="#L-854"><span class="linenos"> 854</span></a><span class="sd"> expression: The AST to remove join marks from.</span>
</span><span id="L-855"><a href="#L-855"><span class="linenos"> 855</span></a>
</span><span id="L-856"><a href="#L-856"><span class="linenos"> 856</span></a><span class="sd"> Returns:</span>
</span><span id="L-857"><a href="#L-857"><span class="linenos"> 857</span></a><span class="sd"> The AST with join marks removed.</span>
</span><span id="L-858"><a href="#L-858"><span class="linenos"> 858</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="L-859"><a href="#L-859"><span class="linenos"> 859</span></a> <span class="kn">from</span><span class="w"> </span><span class="nn">sqlglot.optimizer.scope</span><span class="w"> </span><span class="kn">import</span> <span class="n">traverse_scope</span>
</span><span id="L-853"><a href="#L-853"><span class="linenos"> 853</span></a><span class="sd"> You cannot use the (+) operator to outer-join a table to itself, although self joins are valid.</span>
</span><span id="L-854"><a href="#L-854"><span class="linenos"> 854</span></a>
</span><span id="L-855"><a href="#L-855"><span class="linenos"> 855</span></a><span class="sd"> The (+) operator can be applied only to a column, not to an arbitrary expression. However, an arbitrary expression can contain one or more columns marked with the (+) operator.</span>
</span><span id="L-856"><a href="#L-856"><span class="linenos"> 856</span></a>
</span><span id="L-857"><a href="#L-857"><span class="linenos"> 857</span></a><span class="sd"> A WHERE condition containing the (+) operator cannot be combined with another condition using the OR logical operator.</span>
</span><span id="L-858"><a href="#L-858"><span class="linenos"> 858</span></a>
</span><span id="L-859"><a href="#L-859"><span class="linenos"> 859</span></a><span class="sd"> A WHERE condition cannot use the IN comparison condition to compare a column marked with the (+) operator with an expression.</span>
</span><span id="L-860"><a href="#L-860"><span class="linenos"> 860</span></a>
</span><span id="L-861"><a href="#L-861"><span class="linenos"> 861</span></a> <span class="k">for</span> <span class="n">scope</span> <span class="ow">in</span> <span class="n">traverse_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
</span><span id="L-862"><a href="#L-862"><span class="linenos"> 862</span></a> <span class="n">query</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</span><span class="n">expression</span>
</span><span id="L-863"><a href="#L-863"><span class="linenos"> 863</span></a>
</span><span id="L-864"><a href="#L-864"><span class="linenos"> 864</span></a> <span class="n">where</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;where&quot;</span><span class="p">)</span>
</span><span id="L-865"><a href="#L-865"><span class="linenos"> 865</span></a> <span class="n">joins</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;joins&quot;</span><span class="p">)</span>
</span><span id="L-866"><a href="#L-866"><span class="linenos"> 866</span></a>
</span><span id="L-867"><a href="#L-867"><span class="linenos"> 867</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">where</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">joins</span><span class="p">:</span>
</span><span id="L-868"><a href="#L-868"><span class="linenos"> 868</span></a> <span class="k">continue</span>
</span><span id="L-869"><a href="#L-869"><span class="linenos"> 869</span></a>
</span><span id="L-870"><a href="#L-870"><span class="linenos"> 870</span></a> <span class="n">query_from</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">&quot;from&quot;</span><span class="p">]</span>
</span><span id="L-871"><a href="#L-871"><span class="linenos"> 871</span></a>
</span><span id="L-872"><a href="#L-872"><span class="linenos"> 872</span></a> <span class="c1"># These keep track of the joins to be replaced</span>
</span><span id="L-873"><a href="#L-873"><span class="linenos"> 873</span></a> <span class="n">new_joins</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Join</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="L-874"><a href="#L-874"><span class="linenos"> 874</span></a> <span class="n">old_joins</span> <span class="o">=</span> <span class="p">{</span><span class="n">join</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">:</span> <span class="n">join</span> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">joins</span><span class="p">}</span>
</span><span id="L-861"><a href="#L-861"><span class="linenos"> 861</span></a><span class="sd"> A WHERE condition cannot compare any column marked with the (+) operator with a subquery.</span>
</span><span id="L-862"><a href="#L-862"><span class="linenos"> 862</span></a>
</span><span id="L-863"><a href="#L-863"><span class="linenos"> 863</span></a><span class="sd"> -- example with WHERE</span>
</span><span id="L-864"><a href="#L-864"><span class="linenos"> 864</span></a><span class="sd"> SELECT d.department_name, sum(e.salary) as total_salary</span>
</span><span id="L-865"><a href="#L-865"><span class="linenos"> 865</span></a><span class="sd"> FROM departments d, employees e</span>
</span><span id="L-866"><a href="#L-866"><span class="linenos"> 866</span></a><span class="sd"> WHERE e.department_id(+) = d.department_id</span>
</span><span id="L-867"><a href="#L-867"><span class="linenos"> 867</span></a><span class="sd"> group by department_name</span>
</span><span id="L-868"><a href="#L-868"><span class="linenos"> 868</span></a>
</span><span id="L-869"><a href="#L-869"><span class="linenos"> 869</span></a><span class="sd"> -- example of left correlation in select</span>
</span><span id="L-870"><a href="#L-870"><span class="linenos"> 870</span></a><span class="sd"> SELECT d.department_name, (</span>
</span><span id="L-871"><a href="#L-871"><span class="linenos"> 871</span></a><span class="sd"> SELECT SUM(e.salary)</span>
</span><span id="L-872"><a href="#L-872"><span class="linenos"> 872</span></a><span class="sd"> FROM employees e</span>
</span><span id="L-873"><a href="#L-873"><span class="linenos"> 873</span></a><span class="sd"> WHERE e.department_id(+) = d.department_id) AS total_salary</span>
</span><span id="L-874"><a href="#L-874"><span class="linenos"> 874</span></a><span class="sd"> FROM departments d;</span>
</span><span id="L-875"><a href="#L-875"><span class="linenos"> 875</span></a>
</span><span id="L-876"><a href="#L-876"><span class="linenos"> 876</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">columns</span><span class="p">:</span>
</span><span id="L-877"><a href="#L-877"><span class="linenos"> 877</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">column</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;join_mark&quot;</span><span class="p">):</span>
</span><span id="L-878"><a href="#L-878"><span class="linenos"> 878</span></a> <span class="k">continue</span>
</span><span id="L-879"><a href="#L-879"><span class="linenos"> 879</span></a>
</span><span id="L-880"><a href="#L-880"><span class="linenos"> 880</span></a> <span class="n">predicate</span> <span class="o">=</span> <span class="n">column</span><span class="o">.</span><span class="n">find_ancestor</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Predicate</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span>
</span><span id="L-881"><a href="#L-881"><span class="linenos"> 881</span></a> <span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span>
</span><span id="L-882"><a href="#L-882"><span class="linenos"> 882</span></a> <span class="n">predicate</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span>
</span><span id="L-883"><a href="#L-883"><span class="linenos"> 883</span></a> <span class="p">),</span> <span class="s2">&quot;Columns can only be marked with (+) when involved in a binary operation&quot;</span>
</span><span id="L-876"><a href="#L-876"><span class="linenos"> 876</span></a><span class="sd"> -- example of left correlation in from</span>
</span><span id="L-877"><a href="#L-877"><span class="linenos"> 877</span></a><span class="sd"> SELECT d.department_name, t.total_salary</span>
</span><span id="L-878"><a href="#L-878"><span class="linenos"> 878</span></a><span class="sd"> FROM departments d, (</span>
</span><span id="L-879"><a href="#L-879"><span class="linenos"> 879</span></a><span class="sd"> SELECT SUM(e.salary) AS total_salary</span>
</span><span id="L-880"><a href="#L-880"><span class="linenos"> 880</span></a><span class="sd"> FROM employees e</span>
</span><span id="L-881"><a href="#L-881"><span class="linenos"> 881</span></a><span class="sd"> WHERE e.department_id(+) = d.department_id</span>
</span><span id="L-882"><a href="#L-882"><span class="linenos"> 882</span></a><span class="sd"> ) t</span>
</span><span id="L-883"><a href="#L-883"><span class="linenos"> 883</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="L-884"><a href="#L-884"><span class="linenos"> 884</span></a>
</span><span id="L-885"><a href="#L-885"><span class="linenos"> 885</span></a> <span class="n">predicate_parent</span> <span class="o">=</span> <span class="n">predicate</span><span class="o">.</span><span class="n">parent</span>
</span><span id="L-886"><a href="#L-886"><span class="linenos"> 886</span></a> <span class="n">join_predicate</span> <span class="o">=</span> <span class="n">predicate</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
</span><span id="L-887"><a href="#L-887"><span class="linenos"> 887</span></a>
</span><span id="L-888"><a href="#L-888"><span class="linenos"> 888</span></a> <span class="n">left_columns</span> <span class="o">=</span> <span class="p">[</span>
</span><span id="L-889"><a href="#L-889"><span class="linenos"> 889</span></a> <span class="n">c</span> <span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">join_predicate</span><span class="o">.</span><span class="n">left</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="k">if</span> <span class="n">c</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;join_mark&quot;</span><span class="p">)</span>
</span><span id="L-890"><a href="#L-890"><span class="linenos"> 890</span></a> <span class="p">]</span>
</span><span id="L-891"><a href="#L-891"><span class="linenos"> 891</span></a> <span class="n">right_columns</span> <span class="o">=</span> <span class="p">[</span>
</span><span id="L-892"><a href="#L-892"><span class="linenos"> 892</span></a> <span class="n">c</span> <span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">join_predicate</span><span class="o">.</span><span class="n">right</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="k">if</span> <span class="n">c</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;join_mark&quot;</span><span class="p">)</span>
</span><span id="L-893"><a href="#L-893"><span class="linenos"> 893</span></a> <span class="p">]</span>
</span><span id="L-894"><a href="#L-894"><span class="linenos"> 894</span></a>
</span><span id="L-895"><a href="#L-895"><span class="linenos"> 895</span></a> <span class="k">assert</span> <span class="ow">not</span> <span class="p">(</span>
</span><span id="L-896"><a href="#L-896"><span class="linenos"> 896</span></a> <span class="n">left_columns</span> <span class="ow">and</span> <span class="n">right_columns</span>
</span><span id="L-897"><a href="#L-897"><span class="linenos"> 897</span></a> <span class="p">),</span> <span class="s2">&quot;The (+) marker cannot appear in both sides of a binary predicate&quot;</span>
</span><span id="L-885"><a href="#L-885"><span class="linenos"> 885</span></a> <span class="kn">from</span><span class="w"> </span><span class="nn">sqlglot.optimizer.scope</span><span class="w"> </span><span class="kn">import</span> <span class="n">traverse_scope</span>
</span><span id="L-886"><a href="#L-886"><span class="linenos"> 886</span></a> <span class="kn">from</span><span class="w"> </span><span class="nn">sqlglot.optimizer.normalize</span><span class="w"> </span><span class="kn">import</span> <span class="n">normalize</span><span class="p">,</span> <span class="n">normalized</span>
</span><span id="L-887"><a href="#L-887"><span class="linenos"> 887</span></a> <span class="kn">from</span><span class="w"> </span><span class="nn">collections</span><span class="w"> </span><span class="kn">import</span> <span class="n">defaultdict</span>
</span><span id="L-888"><a href="#L-888"><span class="linenos"> 888</span></a>
</span><span id="L-889"><a href="#L-889"><span class="linenos"> 889</span></a> <span class="c1"># we go in reverse to check the main query for left correlation</span>
</span><span id="L-890"><a href="#L-890"><span class="linenos"> 890</span></a> <span class="k">for</span> <span class="n">scope</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">traverse_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">)):</span>
</span><span id="L-891"><a href="#L-891"><span class="linenos"> 891</span></a> <span class="n">query</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</span><span class="n">expression</span>
</span><span id="L-892"><a href="#L-892"><span class="linenos"> 892</span></a>
</span><span id="L-893"><a href="#L-893"><span class="linenos"> 893</span></a> <span class="n">where</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;where&quot;</span><span class="p">)</span>
</span><span id="L-894"><a href="#L-894"><span class="linenos"> 894</span></a> <span class="n">joins</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;joins&quot;</span><span class="p">,</span> <span class="p">[])</span>
</span><span id="L-895"><a href="#L-895"><span class="linenos"> 895</span></a>
</span><span id="L-896"><a href="#L-896"><span class="linenos"> 896</span></a> <span class="c1"># knockout: we do not support left correlation (see point 2)</span>
</span><span id="L-897"><a href="#L-897"><span class="linenos"> 897</span></a> <span class="k">assert</span> <span class="ow">not</span> <span class="n">scope</span><span class="o">.</span><span class="n">is_correlated_subquery</span><span class="p">,</span> <span class="s2">&quot;Correlated queries are not supported&quot;</span>
</span><span id="L-898"><a href="#L-898"><span class="linenos"> 898</span></a>
</span><span id="L-899"><a href="#L-899"><span class="linenos"> 899</span></a> <span class="n">marked_column_tables</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span>
</span><span id="L-900"><a href="#L-900"><span class="linenos"> 900</span></a> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="n">left_columns</span> <span class="ow">or</span> <span class="n">right_columns</span><span class="p">:</span>
</span><span id="L-901"><a href="#L-901"><span class="linenos"> 901</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">col</span><span class="o">.</span><span class="n">table</span>
</span><span id="L-902"><a href="#L-902"><span class="linenos"> 902</span></a> <span class="k">assert</span> <span class="n">table</span><span class="p">,</span> <span class="sa">f</span><span class="s2">&quot;Column </span><span class="si">{</span><span class="n">col</span><span class="si">}</span><span class="s2"> needs to be qualified with a table&quot;</span>
</span><span id="L-903"><a href="#L-903"><span class="linenos"> 903</span></a>
</span><span id="L-904"><a href="#L-904"><span class="linenos"> 904</span></a> <span class="n">col</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;join_mark&quot;</span><span class="p">,</span> <span class="kc">False</span><span class="p">)</span>
</span><span id="L-905"><a href="#L-905"><span class="linenos"> 905</span></a> <span class="n">marked_column_tables</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">table</span><span class="p">)</span>
</span><span id="L-899"><a href="#L-899"><span class="linenos"> 899</span></a> <span class="c1"># nothing to do - we check it here after knockout above</span>
</span><span id="L-900"><a href="#L-900"><span class="linenos"> 900</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">where</span> <span class="ow">or</span> <span class="ow">not</span> <span class="nb">any</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;join_mark&quot;</span><span class="p">)</span> <span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">where</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)):</span>
</span><span id="L-901"><a href="#L-901"><span class="linenos"> 901</span></a> <span class="k">continue</span>
</span><span id="L-902"><a href="#L-902"><span class="linenos"> 902</span></a>
</span><span id="L-903"><a href="#L-903"><span class="linenos"> 903</span></a> <span class="c1"># make sure we have AND of ORs to have clear join terms</span>
</span><span id="L-904"><a href="#L-904"><span class="linenos"> 904</span></a> <span class="n">where</span> <span class="o">=</span> <span class="n">normalize</span><span class="p">(</span><span class="n">where</span><span class="o">.</span><span class="n">this</span><span class="p">)</span>
</span><span id="L-905"><a href="#L-905"><span class="linenos"> 905</span></a> <span class="k">assert</span> <span class="n">normalized</span><span class="p">(</span><span class="n">where</span><span class="p">),</span> <span class="s2">&quot;Cannot normalize JOIN predicates&quot;</span>
</span><span id="L-906"><a href="#L-906"><span class="linenos"> 906</span></a>
</span><span id="L-907"><a href="#L-907"><span class="linenos"> 907</span></a> <span class="k">assert</span> <span class="p">(</span>
</span><span id="L-908"><a href="#L-908"><span class="linenos"> 908</span></a> <span class="nb">len</span><span class="p">(</span><span class="n">marked_column_tables</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span>
</span><span id="L-909"><a href="#L-909"><span class="linenos"> 909</span></a> <span class="p">),</span> <span class="s2">&quot;Columns of only a single table can be marked with (+) in a given binary predicate&quot;</span>
</span><span id="L-907"><a href="#L-907"><span class="linenos"> 907</span></a> <span class="n">joins_ons</span> <span class="o">=</span> <span class="n">defaultdict</span><span class="p">(</span><span class="nb">list</span><span class="p">)</span> <span class="c1"># dict of {name: list of join AND conditions}</span>
</span><span id="L-908"><a href="#L-908"><span class="linenos"> 908</span></a> <span class="k">for</span> <span class="n">cond</span> <span class="ow">in</span> <span class="p">[</span><span class="n">where</span><span class="p">]</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">where</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">where</span><span class="o">.</span><span class="n">flatten</span><span class="p">():</span>
</span><span id="L-909"><a href="#L-909"><span class="linenos"> 909</span></a> <span class="n">join_cols</span> <span class="o">=</span> <span class="p">[</span><span class="n">col</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="n">cond</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="k">if</span> <span class="n">col</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;join_mark&quot;</span><span class="p">)]</span>
</span><span id="L-910"><a href="#L-910"><span class="linenos"> 910</span></a>
</span><span id="L-911"><a href="#L-911"><span class="linenos"> 911</span></a> <span class="c1"># Add predicate if join already copied, or add join if it is new</span>
</span><span id="L-912"><a href="#L-912"><span class="linenos"> 912</span></a> <span class="n">join_this</span> <span class="o">=</span> <span class="n">old_joins</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">col</span><span class="o">.</span><span class="n">table</span><span class="p">,</span> <span class="n">query_from</span><span class="p">)</span><span class="o">.</span><span class="n">this</span>
</span><span id="L-913"><a href="#L-913"><span class="linenos"> 913</span></a> <span class="n">existing_join</span> <span class="o">=</span> <span class="n">new_joins</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">join_this</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">)</span>
</span><span id="L-914"><a href="#L-914"><span class="linenos"> 914</span></a> <span class="k">if</span> <span class="n">existing_join</span><span class="p">:</span>
</span><span id="L-915"><a href="#L-915"><span class="linenos"> 915</span></a> <span class="n">existing_join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;on&quot;</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span><span class="n">existing_join</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">&quot;on&quot;</span><span class="p">],</span> <span class="n">join_predicate</span><span class="p">))</span>
</span><span id="L-916"><a href="#L-916"><span class="linenos"> 916</span></a> <span class="k">else</span><span class="p">:</span>
</span><span id="L-917"><a href="#L-917"><span class="linenos"> 917</span></a> <span class="n">new_joins</span><span class="p">[</span><span class="n">join_this</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">]</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Join</span><span class="p">(</span>
</span><span id="L-918"><a href="#L-918"><span class="linenos"> 918</span></a> <span class="n">this</span><span class="o">=</span><span class="n">join_this</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">on</span><span class="o">=</span><span class="n">join_predicate</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">kind</span><span class="o">=</span><span class="s2">&quot;LEFT&quot;</span>
</span><span id="L-919"><a href="#L-919"><span class="linenos"> 919</span></a> <span class="p">)</span>
</span><span id="L-920"><a href="#L-920"><span class="linenos"> 920</span></a>
</span><span id="L-921"><a href="#L-921"><span class="linenos"> 921</span></a> <span class="c1"># If the parent of the target predicate is a binary node, then it now has only one child</span>
</span><span id="L-922"><a href="#L-922"><span class="linenos"> 922</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">predicate_parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">):</span>
</span><span id="L-923"><a href="#L-923"><span class="linenos"> 923</span></a> <span class="k">if</span> <span class="n">predicate_parent</span><span class="o">.</span><span class="n">left</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
</span><span id="L-924"><a href="#L-924"><span class="linenos"> 924</span></a> <span class="n">predicate_parent</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">predicate_parent</span><span class="o">.</span><span class="n">right</span><span class="p">)</span>
</span><span id="L-925"><a href="#L-925"><span class="linenos"> 925</span></a> <span class="k">else</span><span class="p">:</span>
</span><span id="L-926"><a href="#L-926"><span class="linenos"> 926</span></a> <span class="n">predicate_parent</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">predicate_parent</span><span class="o">.</span><span class="n">left</span><span class="p">)</span>
</span><span id="L-911"><a href="#L-911"><span class="linenos"> 911</span></a> <span class="n">left_join_table</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">col</span><span class="o">.</span><span class="n">table</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="n">join_cols</span><span class="p">)</span>
</span><span id="L-912"><a href="#L-912"><span class="linenos"> 912</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">left_join_table</span><span class="p">:</span>
</span><span id="L-913"><a href="#L-913"><span class="linenos"> 913</span></a> <span class="k">continue</span>
</span><span id="L-914"><a href="#L-914"><span class="linenos"> 914</span></a>
</span><span id="L-915"><a href="#L-915"><span class="linenos"> 915</span></a> <span class="k">assert</span> <span class="ow">not</span> <span class="p">(</span>
</span><span id="L-916"><a href="#L-916"><span class="linenos"> 916</span></a> <span class="nb">len</span><span class="p">(</span><span class="n">left_join_table</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">1</span>
</span><span id="L-917"><a href="#L-917"><span class="linenos"> 917</span></a> <span class="p">),</span> <span class="s2">&quot;Cannot combine JOIN predicates from different tables&quot;</span>
</span><span id="L-918"><a href="#L-918"><span class="linenos"> 918</span></a>
</span><span id="L-919"><a href="#L-919"><span class="linenos"> 919</span></a> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="n">join_cols</span><span class="p">:</span>
</span><span id="L-920"><a href="#L-920"><span class="linenos"> 920</span></a> <span class="n">col</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;join_mark&quot;</span><span class="p">,</span> <span class="kc">False</span><span class="p">)</span>
</span><span id="L-921"><a href="#L-921"><span class="linenos"> 921</span></a>
</span><span id="L-922"><a href="#L-922"><span class="linenos"> 922</span></a> <span class="n">joins_ons</span><span class="p">[</span><span class="n">left_join_table</span><span class="o">.</span><span class="n">pop</span><span class="p">()]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">cond</span><span class="p">)</span>
</span><span id="L-923"><a href="#L-923"><span class="linenos"> 923</span></a>
</span><span id="L-924"><a href="#L-924"><span class="linenos"> 924</span></a> <span class="n">old_joins</span> <span class="o">=</span> <span class="p">{</span><span class="n">join</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">:</span> <span class="n">join</span> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">joins</span><span class="p">}</span>
</span><span id="L-925"><a href="#L-925"><span class="linenos"> 925</span></a> <span class="n">new_joins</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="L-926"><a href="#L-926"><span class="linenos"> 926</span></a> <span class="n">query_from</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">&quot;from&quot;</span><span class="p">]</span>
</span><span id="L-927"><a href="#L-927"><span class="linenos"> 927</span></a>
</span><span id="L-928"><a href="#L-928"><span class="linenos"> 928</span></a> <span class="n">only_old_join_sources</span> <span class="o">=</span> <span class="n">old_joins</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span> <span class="o">-</span> <span class="n">new_joins</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span>
</span><span id="L-929"><a href="#L-929"><span class="linenos"> 929</span></a>
</span><span id="L-930"><a href="#L-930"><span class="linenos"> 930</span></a> <span class="k">if</span> <span class="n">query_from</span><span class="o">.</span><span class="n">alias_or_name</span> <span class="ow">in</span> <span class="n">new_joins</span><span class="p">:</span>
</span><span id="L-931"><a href="#L-931"><span class="linenos"> 931</span></a> <span class="k">assert</span> <span class="p">(</span>
</span><span id="L-932"><a href="#L-932"><span class="linenos"> 932</span></a> <span class="nb">len</span><span class="p">(</span><span class="n">only_old_join_sources</span><span class="p">)</span> <span class="o">&gt;=</span> <span class="mi">1</span>
</span><span id="L-933"><a href="#L-933"><span class="linenos"> 933</span></a> <span class="p">),</span> <span class="s2">&quot;Cannot determine which table to use in the new FROM clause&quot;</span>
</span><span id="L-934"><a href="#L-934"><span class="linenos"> 934</span></a>
</span><span id="L-935"><a href="#L-935"><span class="linenos"> 935</span></a> <span class="n">new_from_name</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">only_old_join_sources</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
</span><span id="L-936"><a href="#L-936"><span class="linenos"> 936</span></a> <span class="n">query</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;from&quot;</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">From</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">old_joins</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">new_from_name</span><span class="p">)</span><span class="o">.</span><span class="n">this</span><span class="p">))</span>
</span><span id="L-937"><a href="#L-937"><span class="linenos"> 937</span></a> <span class="n">only_old_join_sources</span><span class="o">.</span><span class="n">remove</span><span class="p">(</span><span class="n">new_from_name</span><span class="p">)</span>
</span><span id="L-938"><a href="#L-938"><span class="linenos"> 938</span></a>
</span><span id="L-939"><a href="#L-939"><span class="linenos"> 939</span></a> <span class="k">if</span> <span class="n">new_joins</span><span class="p">:</span>
</span><span id="L-940"><a href="#L-940"><span class="linenos"> 940</span></a> <span class="n">only_old_join_expressions</span> <span class="o">=</span> <span class="p">[]</span>
</span><span id="L-941"><a href="#L-941"><span class="linenos"> 941</span></a> <span class="k">for</span> <span class="n">old_join_source</span> <span class="ow">in</span> <span class="n">only_old_join_sources</span><span class="p">:</span>
</span><span id="L-942"><a href="#L-942"><span class="linenos"> 942</span></a> <span class="n">old_join_expression</span> <span class="o">=</span> <span class="n">old_joins</span><span class="p">[</span><span class="n">old_join_source</span><span class="p">]</span>
</span><span id="L-943"><a href="#L-943"><span class="linenos"> 943</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">old_join_expression</span><span class="o">.</span><span class="n">kind</span><span class="p">:</span>
</span><span id="L-944"><a href="#L-944"><span class="linenos"> 944</span></a> <span class="n">old_join_expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;kind&quot;</span><span class="p">,</span> <span class="s2">&quot;CROSS&quot;</span><span class="p">)</span>
</span><span id="L-945"><a href="#L-945"><span class="linenos"> 945</span></a>
</span><span id="L-946"><a href="#L-946"><span class="linenos"> 946</span></a> <span class="n">only_old_join_expressions</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">old_join_expression</span><span class="p">)</span>
</span><span id="L-947"><a href="#L-947"><span class="linenos"> 947</span></a>
</span><span id="L-948"><a href="#L-948"><span class="linenos"> 948</span></a> <span class="n">query</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;joins&quot;</span><span class="p">,</span> <span class="nb">list</span><span class="p">(</span><span class="n">new_joins</span><span class="o">.</span><span class="n">values</span><span class="p">())</span> <span class="o">+</span> <span class="n">only_old_join_expressions</span><span class="p">)</span>
</span><span id="L-949"><a href="#L-949"><span class="linenos"> 949</span></a>
</span><span id="L-950"><a href="#L-950"><span class="linenos"> 950</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">where</span><span class="o">.</span><span class="n">this</span><span class="p">:</span>
</span><span id="L-951"><a href="#L-951"><span class="linenos"> 951</span></a> <span class="n">where</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
</span><span id="L-952"><a href="#L-952"><span class="linenos"> 952</span></a>
</span><span id="L-953"><a href="#L-953"><span class="linenos"> 953</span></a> <span class="k">return</span> <span class="n">expression</span>
</span><span id="L-954"><a href="#L-954"><span class="linenos"> 954</span></a>
</span><span id="L-955"><a href="#L-955"><span class="linenos"> 955</span></a>
</span><span id="L-956"><a href="#L-956"><span class="linenos"> 956</span></a><span class="k">def</span><span class="w"> </span><span class="nf">any_to_exists</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
</span><span id="L-957"><a href="#L-957"><span class="linenos"> 957</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="L-958"><a href="#L-958"><span class="linenos"> 958</span></a><span class="sd"> Transform ANY operator to Spark&#39;s EXISTS</span>
</span><span id="L-959"><a href="#L-959"><span class="linenos"> 959</span></a>
</span><span id="L-960"><a href="#L-960"><span class="linenos"> 960</span></a><span class="sd"> For example,</span>
</span><span id="L-961"><a href="#L-961"><span class="linenos"> 961</span></a><span class="sd"> - Postgres: SELECT * FROM tbl WHERE 5 &gt; ANY(tbl.col)</span>
</span><span id="L-962"><a href="#L-962"><span class="linenos"> 962</span></a><span class="sd"> - Spark: SELECT * FROM tbl WHERE EXISTS(tbl.col, x -&gt; x &lt; 5)</span>
</span><span id="L-928"><a href="#L-928"><span class="linenos"> 928</span></a> <span class="k">for</span> <span class="n">table</span><span class="p">,</span> <span class="n">predicates</span> <span class="ow">in</span> <span class="n">joins_ons</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
</span><span id="L-929"><a href="#L-929"><span class="linenos"> 929</span></a> <span class="n">join_what</span> <span class="o">=</span> <span class="n">old_joins</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table</span><span class="p">,</span> <span class="n">query_from</span><span class="p">)</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
</span><span id="L-930"><a href="#L-930"><span class="linenos"> 930</span></a> <span class="n">new_joins</span><span class="p">[</span><span class="n">join_what</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">]</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Join</span><span class="p">(</span>
</span><span id="L-931"><a href="#L-931"><span class="linenos"> 931</span></a> <span class="n">this</span><span class="o">=</span><span class="n">join_what</span><span class="p">,</span> <span class="n">on</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span><span class="o">*</span><span class="n">predicates</span><span class="p">),</span> <span class="n">kind</span><span class="o">=</span><span class="s2">&quot;LEFT&quot;</span>
</span><span id="L-932"><a href="#L-932"><span class="linenos"> 932</span></a> <span class="p">)</span>
</span><span id="L-933"><a href="#L-933"><span class="linenos"> 933</span></a>
</span><span id="L-934"><a href="#L-934"><span class="linenos"> 934</span></a> <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="n">predicates</span><span class="p">:</span>
</span><span id="L-935"><a href="#L-935"><span class="linenos"> 935</span></a> <span class="k">while</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">p</span><span class="o">.</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">):</span>
</span><span id="L-936"><a href="#L-936"><span class="linenos"> 936</span></a> <span class="n">p</span><span class="o">.</span><span class="n">parent</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">p</span><span class="p">)</span>
</span><span id="L-937"><a href="#L-937"><span class="linenos"> 937</span></a>
</span><span id="L-938"><a href="#L-938"><span class="linenos"> 938</span></a> <span class="n">parent</span> <span class="o">=</span> <span class="n">p</span><span class="o">.</span><span class="n">parent</span>
</span><span id="L-939"><a href="#L-939"><span class="linenos"> 939</span></a> <span class="n">p</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
</span><span id="L-940"><a href="#L-940"><span class="linenos"> 940</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">):</span>
</span><span id="L-941"><a href="#L-941"><span class="linenos"> 941</span></a> <span class="n">parent</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">parent</span><span class="o">.</span><span class="n">right</span> <span class="k">if</span> <span class="n">parent</span><span class="o">.</span><span class="n">left</span> <span class="ow">is</span> <span class="kc">None</span> <span class="k">else</span> <span class="n">parent</span><span class="o">.</span><span class="n">left</span><span class="p">)</span>
</span><span id="L-942"><a href="#L-942"><span class="linenos"> 942</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Where</span><span class="p">):</span>
</span><span id="L-943"><a href="#L-943"><span class="linenos"> 943</span></a> <span class="n">parent</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
</span><span id="L-944"><a href="#L-944"><span class="linenos"> 944</span></a>
</span><span id="L-945"><a href="#L-945"><span class="linenos"> 945</span></a> <span class="k">if</span> <span class="n">query_from</span><span class="o">.</span><span class="n">alias_or_name</span> <span class="ow">in</span> <span class="n">new_joins</span><span class="p">:</span>
</span><span id="L-946"><a href="#L-946"><span class="linenos"> 946</span></a> <span class="n">only_old_joins</span> <span class="o">=</span> <span class="n">old_joins</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span> <span class="o">-</span> <span class="n">new_joins</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span>
</span><span id="L-947"><a href="#L-947"><span class="linenos"> 947</span></a> <span class="k">assert</span> <span class="p">(</span>
</span><span id="L-948"><a href="#L-948"><span class="linenos"> 948</span></a> <span class="nb">len</span><span class="p">(</span><span class="n">only_old_joins</span><span class="p">)</span> <span class="o">&gt;=</span> <span class="mi">1</span>
</span><span id="L-949"><a href="#L-949"><span class="linenos"> 949</span></a> <span class="p">),</span> <span class="s2">&quot;Cannot determine which table to use in the new FROM clause&quot;</span>
</span><span id="L-950"><a href="#L-950"><span class="linenos"> 950</span></a>
</span><span id="L-951"><a href="#L-951"><span class="linenos"> 951</span></a> <span class="n">new_from_name</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">only_old_joins</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
</span><span id="L-952"><a href="#L-952"><span class="linenos"> 952</span></a> <span class="n">query</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;from&quot;</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">From</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">old_joins</span><span class="p">[</span><span class="n">new_from_name</span><span class="p">]</span><span class="o">.</span><span class="n">this</span><span class="p">))</span>
</span><span id="L-953"><a href="#L-953"><span class="linenos"> 953</span></a>
</span><span id="L-954"><a href="#L-954"><span class="linenos"> 954</span></a> <span class="k">if</span> <span class="n">new_joins</span><span class="p">:</span>
</span><span id="L-955"><a href="#L-955"><span class="linenos"> 955</span></a> <span class="k">for</span> <span class="n">n</span><span class="p">,</span> <span class="n">j</span> <span class="ow">in</span> <span class="n">old_joins</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> <span class="c1"># preserve any other joins</span>
</span><span id="L-956"><a href="#L-956"><span class="linenos"> 956</span></a> <span class="k">if</span> <span class="n">n</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">new_joins</span> <span class="ow">and</span> <span class="n">n</span> <span class="o">!=</span> <span class="n">query</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">&quot;from&quot;</span><span class="p">]</span><span class="o">.</span><span class="n">name</span><span class="p">:</span>
</span><span id="L-957"><a href="#L-957"><span class="linenos"> 957</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">j</span><span class="o">.</span><span class="n">kind</span><span class="p">:</span>
</span><span id="L-958"><a href="#L-958"><span class="linenos"> 958</span></a> <span class="n">j</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;kind&quot;</span><span class="p">,</span> <span class="s2">&quot;CROSS&quot;</span><span class="p">)</span>
</span><span id="L-959"><a href="#L-959"><span class="linenos"> 959</span></a> <span class="n">new_joins</span><span class="p">[</span><span class="n">n</span><span class="p">]</span> <span class="o">=</span> <span class="n">j</span>
</span><span id="L-960"><a href="#L-960"><span class="linenos"> 960</span></a> <span class="n">query</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;joins&quot;</span><span class="p">,</span> <span class="nb">list</span><span class="p">(</span><span class="n">new_joins</span><span class="o">.</span><span class="n">values</span><span class="p">()))</span>
</span><span id="L-961"><a href="#L-961"><span class="linenos"> 961</span></a>
</span><span id="L-962"><a href="#L-962"><span class="linenos"> 962</span></a> <span class="k">return</span> <span class="n">expression</span>
</span><span id="L-963"><a href="#L-963"><span class="linenos"> 963</span></a>
</span><span id="L-964"><a href="#L-964"><span class="linenos"> 964</span></a><span class="sd"> Both ANY and EXISTS accept queries but currently only array expressions are supported for this</span>
</span><span id="L-965"><a href="#L-965"><span class="linenos"> 965</span></a><span class="sd"> transformation</span>
</span><span id="L-966"><a href="#L-966"><span class="linenos"> 966</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="L-967"><a href="#L-967"><span class="linenos"> 967</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">):</span>
</span><span id="L-968"><a href="#L-968"><span class="linenos"> 968</span></a> <span class="k">for</span> <span class="n">any_expr</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Any</span><span class="p">):</span>
</span><span id="L-969"><a href="#L-969"><span class="linenos"> 969</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">any_expr</span><span class="o">.</span><span class="n">this</span>
</span><span id="L-970"><a href="#L-970"><span class="linenos"> 970</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Query</span><span class="p">):</span>
</span><span id="L-971"><a href="#L-971"><span class="linenos"> 971</span></a> <span class="k">continue</span>
</span><span id="L-964"><a href="#L-964"><span class="linenos"> 964</span></a>
</span><span id="L-965"><a href="#L-965"><span class="linenos"> 965</span></a><span class="k">def</span><span class="w"> </span><span class="nf">any_to_exists</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
</span><span id="L-966"><a href="#L-966"><span class="linenos"> 966</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="L-967"><a href="#L-967"><span class="linenos"> 967</span></a><span class="sd"> Transform ANY operator to Spark&#39;s EXISTS</span>
</span><span id="L-968"><a href="#L-968"><span class="linenos"> 968</span></a>
</span><span id="L-969"><a href="#L-969"><span class="linenos"> 969</span></a><span class="sd"> For example,</span>
</span><span id="L-970"><a href="#L-970"><span class="linenos"> 970</span></a><span class="sd"> - Postgres: SELECT * FROM tbl WHERE 5 &gt; ANY(tbl.col)</span>
</span><span id="L-971"><a href="#L-971"><span class="linenos"> 971</span></a><span class="sd"> - Spark: SELECT * FROM tbl WHERE EXISTS(tbl.col, x -&gt; x &lt; 5)</span>
</span><span id="L-972"><a href="#L-972"><span class="linenos"> 972</span></a>
</span><span id="L-973"><a href="#L-973"><span class="linenos"> 973</span></a> <span class="n">binop</span> <span class="o">=</span> <span class="n">any_expr</span><span class="o">.</span><span class="n">parent</span>
</span><span id="L-974"><a href="#L-974"><span class="linenos"> 974</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">binop</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">):</span>
</span><span id="L-975"><a href="#L-975"><span class="linenos"> 975</span></a> <span class="n">lambda_arg</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="s2">&quot;x&quot;</span><span class="p">)</span>
</span><span id="L-976"><a href="#L-976"><span class="linenos"> 976</span></a> <span class="n">any_expr</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">lambda_arg</span><span class="p">)</span>
</span><span id="L-977"><a href="#L-977"><span class="linenos"> 977</span></a> <span class="n">lambda_expr</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Lambda</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">binop</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expressions</span><span class="o">=</span><span class="p">[</span><span class="n">lambda_arg</span><span class="p">])</span>
</span><span id="L-978"><a href="#L-978"><span class="linenos"> 978</span></a> <span class="n">binop</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Exists</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">this</span><span class="o">.</span><span class="n">unnest</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">lambda_expr</span><span class="p">))</span>
</span><span id="L-979"><a href="#L-979"><span class="linenos"> 979</span></a>
</span><span id="L-980"><a href="#L-980"><span class="linenos"> 980</span></a> <span class="k">return</span> <span class="n">expression</span>
</span><span id="L-973"><a href="#L-973"><span class="linenos"> 973</span></a><span class="sd"> Both ANY and EXISTS accept queries but currently only array expressions are supported for this</span>
</span><span id="L-974"><a href="#L-974"><span class="linenos"> 974</span></a><span class="sd"> transformation</span>
</span><span id="L-975"><a href="#L-975"><span class="linenos"> 975</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="L-976"><a href="#L-976"><span class="linenos"> 976</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">):</span>
</span><span id="L-977"><a href="#L-977"><span class="linenos"> 977</span></a> <span class="k">for</span> <span class="n">any_expr</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Any</span><span class="p">):</span>
</span><span id="L-978"><a href="#L-978"><span class="linenos"> 978</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">any_expr</span><span class="o">.</span><span class="n">this</span>
</span><span id="L-979"><a href="#L-979"><span class="linenos"> 979</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Query</span><span class="p">):</span>
</span><span id="L-980"><a href="#L-980"><span class="linenos"> 980</span></a> <span class="k">continue</span>
</span><span id="L-981"><a href="#L-981"><span class="linenos"> 981</span></a>
</span><span id="L-982"><a href="#L-982"><span class="linenos"> 982</span></a>
</span><span id="L-983"><a href="#L-983"><span class="linenos"> 983</span></a><span class="k">def</span><span class="w"> </span><span class="nf">eliminate_window_clause</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
</span><span id="L-984"><a href="#L-984"><span class="linenos"> 984</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Eliminates the `WINDOW` query clause by inling each named window.&quot;&quot;&quot;</span>
</span><span id="L-985"><a href="#L-985"><span class="linenos"> 985</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span> <span class="ow">and</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;windows&quot;</span><span class="p">):</span>
</span><span id="L-986"><a href="#L-986"><span class="linenos"> 986</span></a> <span class="kn">from</span><span class="w"> </span><span class="nn">sqlglot.optimizer.scope</span><span class="w"> </span><span class="kn">import</span> <span class="n">find_all_in_scope</span>
</span><span id="L-987"><a href="#L-987"><span class="linenos"> 987</span></a>
</span><span id="L-988"><a href="#L-988"><span class="linenos"> 988</span></a> <span class="n">windows</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">&quot;windows&quot;</span><span class="p">]</span>
</span><span id="L-989"><a href="#L-989"><span class="linenos"> 989</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;windows&quot;</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
</span><span id="L-982"><a href="#L-982"><span class="linenos"> 982</span></a> <span class="n">binop</span> <span class="o">=</span> <span class="n">any_expr</span><span class="o">.</span><span class="n">parent</span>
</span><span id="L-983"><a href="#L-983"><span class="linenos"> 983</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">binop</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">):</span>
</span><span id="L-984"><a href="#L-984"><span class="linenos"> 984</span></a> <span class="n">lambda_arg</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="s2">&quot;x&quot;</span><span class="p">)</span>
</span><span id="L-985"><a href="#L-985"><span class="linenos"> 985</span></a> <span class="n">any_expr</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">lambda_arg</span><span class="p">)</span>
</span><span id="L-986"><a href="#L-986"><span class="linenos"> 986</span></a> <span class="n">lambda_expr</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Lambda</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">binop</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expressions</span><span class="o">=</span><span class="p">[</span><span class="n">lambda_arg</span><span class="p">])</span>
</span><span id="L-987"><a href="#L-987"><span class="linenos"> 987</span></a> <span class="n">binop</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Exists</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">this</span><span class="o">.</span><span class="n">unnest</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">lambda_expr</span><span class="p">))</span>
</span><span id="L-988"><a href="#L-988"><span class="linenos"> 988</span></a>
</span><span id="L-989"><a href="#L-989"><span class="linenos"> 989</span></a> <span class="k">return</span> <span class="n">expression</span>
</span><span id="L-990"><a href="#L-990"><span class="linenos"> 990</span></a>
</span><span id="L-991"><a href="#L-991"><span class="linenos"> 991</span></a> <span class="n">window_expression</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="L-992"><a href="#L-992"><span class="linenos"> 992</span></a>
</span><span id="L-993"><a href="#L-993"><span class="linenos"> 993</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">_inline_inherited_window</span><span class="p">(</span><span class="n">window</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kc">None</span><span class="p">:</span>
</span><span id="L-994"><a href="#L-994"><span class="linenos"> 994</span></a> <span class="n">inherited_window</span> <span class="o">=</span> <span class="n">window_expression</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">window</span><span class="o">.</span><span class="n">alias</span><span class="o">.</span><span class="n">lower</span><span class="p">())</span>
</span><span id="L-995"><a href="#L-995"><span class="linenos"> 995</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">inherited_window</span><span class="p">:</span>
</span><span id="L-996"><a href="#L-996"><span class="linenos"> 996</span></a> <span class="k">return</span>
</span><span id="L-997"><a href="#L-997"><span class="linenos"> 997</span></a>
</span><span id="L-998"><a href="#L-998"><span class="linenos"> 998</span></a> <span class="n">window</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;alias&quot;</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
</span><span id="L-999"><a href="#L-999"><span class="linenos"> 999</span></a> <span class="k">for</span> <span class="n">key</span> <span class="ow">in</span> <span class="p">(</span><span class="s2">&quot;partition_by&quot;</span><span class="p">,</span> <span class="s2">&quot;order&quot;</span><span class="p">,</span> <span class="s2">&quot;spec&quot;</span><span class="p">):</span>
</span><span id="L-1000"><a href="#L-1000"><span class="linenos">1000</span></a> <span class="n">arg</span> <span class="o">=</span> <span class="n">inherited_window</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
</span><span id="L-1001"><a href="#L-1001"><span class="linenos">1001</span></a> <span class="k">if</span> <span class="n">arg</span><span class="p">:</span>
</span><span id="L-1002"><a href="#L-1002"><span class="linenos">1002</span></a> <span class="n">window</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">arg</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span>
</span><span id="L-1003"><a href="#L-1003"><span class="linenos">1003</span></a>
</span><span id="L-1004"><a href="#L-1004"><span class="linenos">1004</span></a> <span class="k">for</span> <span class="n">window</span> <span class="ow">in</span> <span class="n">windows</span><span class="p">:</span>
</span><span id="L-1005"><a href="#L-1005"><span class="linenos">1005</span></a> <span class="n">_inline_inherited_window</span><span class="p">(</span><span class="n">window</span><span class="p">)</span>
</span><span id="L-1006"><a href="#L-1006"><span class="linenos">1006</span></a> <span class="n">window_expression</span><span class="p">[</span><span class="n">window</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">lower</span><span class="p">()]</span> <span class="o">=</span> <span class="n">window</span>
</span><span id="L-1007"><a href="#L-1007"><span class="linenos">1007</span></a>
</span><span id="L-1008"><a href="#L-1008"><span class="linenos">1008</span></a> <span class="k">for</span> <span class="n">window</span> <span class="ow">in</span> <span class="n">find_all_in_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Window</span><span class="p">):</span>
</span><span id="L-1009"><a href="#L-1009"><span class="linenos">1009</span></a> <span class="n">_inline_inherited_window</span><span class="p">(</span><span class="n">window</span><span class="p">)</span>
</span><span id="L-1010"><a href="#L-1010"><span class="linenos">1010</span></a>
</span><span id="L-1011"><a href="#L-1011"><span class="linenos">1011</span></a> <span class="k">return</span> <span class="n">expression</span>
</span><span id="L-991"><a href="#L-991"><span class="linenos"> 991</span></a>
</span><span id="L-992"><a href="#L-992"><span class="linenos"> 992</span></a><span class="k">def</span><span class="w"> </span><span class="nf">eliminate_window_clause</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
</span><span id="L-993"><a href="#L-993"><span class="linenos"> 993</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Eliminates the `WINDOW` query clause by inling each named window.&quot;&quot;&quot;</span>
</span><span id="L-994"><a href="#L-994"><span class="linenos"> 994</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span> <span class="ow">and</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;windows&quot;</span><span class="p">):</span>
</span><span id="L-995"><a href="#L-995"><span class="linenos"> 995</span></a> <span class="kn">from</span><span class="w"> </span><span class="nn">sqlglot.optimizer.scope</span><span class="w"> </span><span class="kn">import</span> <span class="n">find_all_in_scope</span>
</span><span id="L-996"><a href="#L-996"><span class="linenos"> 996</span></a>
</span><span id="L-997"><a href="#L-997"><span class="linenos"> 997</span></a> <span class="n">windows</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">&quot;windows&quot;</span><span class="p">]</span>
</span><span id="L-998"><a href="#L-998"><span class="linenos"> 998</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;windows&quot;</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
</span><span id="L-999"><a href="#L-999"><span class="linenos"> 999</span></a>
</span><span id="L-1000"><a href="#L-1000"><span class="linenos">1000</span></a> <span class="n">window_expression</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="L-1001"><a href="#L-1001"><span class="linenos">1001</span></a>
</span><span id="L-1002"><a href="#L-1002"><span class="linenos">1002</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">_inline_inherited_window</span><span class="p">(</span><span class="n">window</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kc">None</span><span class="p">:</span>
</span><span id="L-1003"><a href="#L-1003"><span class="linenos">1003</span></a> <span class="n">inherited_window</span> <span class="o">=</span> <span class="n">window_expression</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">window</span><span class="o">.</span><span class="n">alias</span><span class="o">.</span><span class="n">lower</span><span class="p">())</span>
</span><span id="L-1004"><a href="#L-1004"><span class="linenos">1004</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">inherited_window</span><span class="p">:</span>
</span><span id="L-1005"><a href="#L-1005"><span class="linenos">1005</span></a> <span class="k">return</span>
</span><span id="L-1006"><a href="#L-1006"><span class="linenos">1006</span></a>
</span><span id="L-1007"><a href="#L-1007"><span class="linenos">1007</span></a> <span class="n">window</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;alias&quot;</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
</span><span id="L-1008"><a href="#L-1008"><span class="linenos">1008</span></a> <span class="k">for</span> <span class="n">key</span> <span class="ow">in</span> <span class="p">(</span><span class="s2">&quot;partition_by&quot;</span><span class="p">,</span> <span class="s2">&quot;order&quot;</span><span class="p">,</span> <span class="s2">&quot;spec&quot;</span><span class="p">):</span>
</span><span id="L-1009"><a href="#L-1009"><span class="linenos">1009</span></a> <span class="n">arg</span> <span class="o">=</span> <span class="n">inherited_window</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
</span><span id="L-1010"><a href="#L-1010"><span class="linenos">1010</span></a> <span class="k">if</span> <span class="n">arg</span><span class="p">:</span>
</span><span id="L-1011"><a href="#L-1011"><span class="linenos">1011</span></a> <span class="n">window</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">arg</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span>
</span><span id="L-1012"><a href="#L-1012"><span class="linenos">1012</span></a>
</span><span id="L-1013"><a href="#L-1013"><span class="linenos">1013</span></a> <span class="k">for</span> <span class="n">window</span> <span class="ow">in</span> <span class="n">windows</span><span class="p">:</span>
</span><span id="L-1014"><a href="#L-1014"><span class="linenos">1014</span></a> <span class="n">_inline_inherited_window</span><span class="p">(</span><span class="n">window</span><span class="p">)</span>
</span><span id="L-1015"><a href="#L-1015"><span class="linenos">1015</span></a> <span class="n">window_expression</span><span class="p">[</span><span class="n">window</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">lower</span><span class="p">()]</span> <span class="o">=</span> <span class="n">window</span>
</span><span id="L-1016"><a href="#L-1016"><span class="linenos">1016</span></a>
</span><span id="L-1017"><a href="#L-1017"><span class="linenos">1017</span></a> <span class="k">for</span> <span class="n">window</span> <span class="ow">in</span> <span class="n">find_all_in_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Window</span><span class="p">):</span>
</span><span id="L-1018"><a href="#L-1018"><span class="linenos">1018</span></a> <span class="n">_inline_inherited_window</span><span class="p">(</span><span class="n">window</span><span class="p">)</span>
</span><span id="L-1019"><a href="#L-1019"><span class="linenos">1019</span></a>
</span><span id="L-1020"><a href="#L-1020"><span class="linenos">1020</span></a> <span class="k">return</span> <span class="n">expression</span>
</span></pre></div>
@ -2467,136 +2476,166 @@ The corresponding columns are removed from the create statement.</p>
</div>
<a class="headerlink" href="#eliminate_join_marks"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="eliminate_join_marks-845"><a href="#eliminate_join_marks-845"><span class="linenos">845</span></a><span class="k">def</span><span class="w"> </span><span class="nf">eliminate_join_marks</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
</span><span id="eliminate_join_marks-846"><a href="#eliminate_join_marks-846"><span class="linenos">846</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="eliminate_join_marks-847"><a href="#eliminate_join_marks-847"><span class="linenos">847</span></a><span class="sd"> Remove join marks from an AST. This rule assumes that all marked columns are qualified.</span>
</span><span id="eliminate_join_marks-848"><a href="#eliminate_join_marks-848"><span class="linenos">848</span></a><span class="sd"> If this does not hold for a query, consider running `sqlglot.optimizer.qualify` first.</span>
</span><span id="eliminate_join_marks-846"><a href="#eliminate_join_marks-846"><span class="linenos">846</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;https://docs.oracle.com/cd/B19306_01/server.102/b14200/queries006.htm#sthref3178</span>
</span><span id="eliminate_join_marks-847"><a href="#eliminate_join_marks-847"><span class="linenos">847</span></a>
</span><span id="eliminate_join_marks-848"><a href="#eliminate_join_marks-848"><span class="linenos">848</span></a><span class="sd"> 1. You cannot specify the (+) operator in a query block that also contains FROM clause join syntax.</span>
</span><span id="eliminate_join_marks-849"><a href="#eliminate_join_marks-849"><span class="linenos">849</span></a>
</span><span id="eliminate_join_marks-850"><a href="#eliminate_join_marks-850"><span class="linenos">850</span></a><span class="sd"> For example,</span>
</span><span id="eliminate_join_marks-851"><a href="#eliminate_join_marks-851"><span class="linenos">851</span></a><span class="sd"> SELECT * FROM a, b WHERE a.id = b.id(+) -- ... is converted to</span>
</span><span id="eliminate_join_marks-852"><a href="#eliminate_join_marks-852"><span class="linenos">852</span></a><span class="sd"> SELECT * FROM a LEFT JOIN b ON a.id = b.id -- this</span>
</span><span id="eliminate_join_marks-850"><a href="#eliminate_join_marks-850"><span class="linenos">850</span></a><span class="sd"> 2. The (+) operator can appear only in the WHERE clause or, in the context of left-correlation (that is, when specifying the TABLE clause) in the FROM clause, and can be applied only to a column of a table or view.</span>
</span><span id="eliminate_join_marks-851"><a href="#eliminate_join_marks-851"><span class="linenos">851</span></a>
</span><span id="eliminate_join_marks-852"><a href="#eliminate_join_marks-852"><span class="linenos">852</span></a><span class="sd"> The (+) operator does not produce an outer join if you specify one table in the outer query and the other table in an inner query.</span>
</span><span id="eliminate_join_marks-853"><a href="#eliminate_join_marks-853"><span class="linenos">853</span></a>
</span><span id="eliminate_join_marks-854"><a href="#eliminate_join_marks-854"><span class="linenos">854</span></a><span class="sd"> Args:</span>
</span><span id="eliminate_join_marks-855"><a href="#eliminate_join_marks-855"><span class="linenos">855</span></a><span class="sd"> expression: The AST to remove join marks from.</span>
</span><span id="eliminate_join_marks-856"><a href="#eliminate_join_marks-856"><span class="linenos">856</span></a>
</span><span id="eliminate_join_marks-857"><a href="#eliminate_join_marks-857"><span class="linenos">857</span></a><span class="sd"> Returns:</span>
</span><span id="eliminate_join_marks-858"><a href="#eliminate_join_marks-858"><span class="linenos">858</span></a><span class="sd"> The AST with join marks removed.</span>
</span><span id="eliminate_join_marks-859"><a href="#eliminate_join_marks-859"><span class="linenos">859</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="eliminate_join_marks-860"><a href="#eliminate_join_marks-860"><span class="linenos">860</span></a> <span class="kn">from</span><span class="w"> </span><span class="nn">sqlglot.optimizer.scope</span><span class="w"> </span><span class="kn">import</span> <span class="n">traverse_scope</span>
</span><span id="eliminate_join_marks-854"><a href="#eliminate_join_marks-854"><span class="linenos">854</span></a><span class="sd"> You cannot use the (+) operator to outer-join a table to itself, although self joins are valid.</span>
</span><span id="eliminate_join_marks-855"><a href="#eliminate_join_marks-855"><span class="linenos">855</span></a>
</span><span id="eliminate_join_marks-856"><a href="#eliminate_join_marks-856"><span class="linenos">856</span></a><span class="sd"> The (+) operator can be applied only to a column, not to an arbitrary expression. However, an arbitrary expression can contain one or more columns marked with the (+) operator.</span>
</span><span id="eliminate_join_marks-857"><a href="#eliminate_join_marks-857"><span class="linenos">857</span></a>
</span><span id="eliminate_join_marks-858"><a href="#eliminate_join_marks-858"><span class="linenos">858</span></a><span class="sd"> A WHERE condition containing the (+) operator cannot be combined with another condition using the OR logical operator.</span>
</span><span id="eliminate_join_marks-859"><a href="#eliminate_join_marks-859"><span class="linenos">859</span></a>
</span><span id="eliminate_join_marks-860"><a href="#eliminate_join_marks-860"><span class="linenos">860</span></a><span class="sd"> A WHERE condition cannot use the IN comparison condition to compare a column marked with the (+) operator with an expression.</span>
</span><span id="eliminate_join_marks-861"><a href="#eliminate_join_marks-861"><span class="linenos">861</span></a>
</span><span id="eliminate_join_marks-862"><a href="#eliminate_join_marks-862"><span class="linenos">862</span></a> <span class="k">for</span> <span class="n">scope</span> <span class="ow">in</span> <span class="n">traverse_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span>
</span><span id="eliminate_join_marks-863"><a href="#eliminate_join_marks-863"><span class="linenos">863</span></a> <span class="n">query</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</span><span class="n">expression</span>
</span><span id="eliminate_join_marks-864"><a href="#eliminate_join_marks-864"><span class="linenos">864</span></a>
</span><span id="eliminate_join_marks-865"><a href="#eliminate_join_marks-865"><span class="linenos">865</span></a> <span class="n">where</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;where&quot;</span><span class="p">)</span>
</span><span id="eliminate_join_marks-866"><a href="#eliminate_join_marks-866"><span class="linenos">866</span></a> <span class="n">joins</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;joins&quot;</span><span class="p">)</span>
</span><span id="eliminate_join_marks-867"><a href="#eliminate_join_marks-867"><span class="linenos">867</span></a>
</span><span id="eliminate_join_marks-868"><a href="#eliminate_join_marks-868"><span class="linenos">868</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">where</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">joins</span><span class="p">:</span>
</span><span id="eliminate_join_marks-869"><a href="#eliminate_join_marks-869"><span class="linenos">869</span></a> <span class="k">continue</span>
</span><span id="eliminate_join_marks-870"><a href="#eliminate_join_marks-870"><span class="linenos">870</span></a>
</span><span id="eliminate_join_marks-871"><a href="#eliminate_join_marks-871"><span class="linenos">871</span></a> <span class="n">query_from</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">&quot;from&quot;</span><span class="p">]</span>
</span><span id="eliminate_join_marks-872"><a href="#eliminate_join_marks-872"><span class="linenos">872</span></a>
</span><span id="eliminate_join_marks-873"><a href="#eliminate_join_marks-873"><span class="linenos">873</span></a> <span class="c1"># These keep track of the joins to be replaced</span>
</span><span id="eliminate_join_marks-874"><a href="#eliminate_join_marks-874"><span class="linenos">874</span></a> <span class="n">new_joins</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Join</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="eliminate_join_marks-875"><a href="#eliminate_join_marks-875"><span class="linenos">875</span></a> <span class="n">old_joins</span> <span class="o">=</span> <span class="p">{</span><span class="n">join</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">:</span> <span class="n">join</span> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">joins</span><span class="p">}</span>
</span><span id="eliminate_join_marks-862"><a href="#eliminate_join_marks-862"><span class="linenos">862</span></a><span class="sd"> A WHERE condition cannot compare any column marked with the (+) operator with a subquery.</span>
</span><span id="eliminate_join_marks-863"><a href="#eliminate_join_marks-863"><span class="linenos">863</span></a>
</span><span id="eliminate_join_marks-864"><a href="#eliminate_join_marks-864"><span class="linenos">864</span></a><span class="sd"> -- example with WHERE</span>
</span><span id="eliminate_join_marks-865"><a href="#eliminate_join_marks-865"><span class="linenos">865</span></a><span class="sd"> SELECT d.department_name, sum(e.salary) as total_salary</span>
</span><span id="eliminate_join_marks-866"><a href="#eliminate_join_marks-866"><span class="linenos">866</span></a><span class="sd"> FROM departments d, employees e</span>
</span><span id="eliminate_join_marks-867"><a href="#eliminate_join_marks-867"><span class="linenos">867</span></a><span class="sd"> WHERE e.department_id(+) = d.department_id</span>
</span><span id="eliminate_join_marks-868"><a href="#eliminate_join_marks-868"><span class="linenos">868</span></a><span class="sd"> group by department_name</span>
</span><span id="eliminate_join_marks-869"><a href="#eliminate_join_marks-869"><span class="linenos">869</span></a>
</span><span id="eliminate_join_marks-870"><a href="#eliminate_join_marks-870"><span class="linenos">870</span></a><span class="sd"> -- example of left correlation in select</span>
</span><span id="eliminate_join_marks-871"><a href="#eliminate_join_marks-871"><span class="linenos">871</span></a><span class="sd"> SELECT d.department_name, (</span>
</span><span id="eliminate_join_marks-872"><a href="#eliminate_join_marks-872"><span class="linenos">872</span></a><span class="sd"> SELECT SUM(e.salary)</span>
</span><span id="eliminate_join_marks-873"><a href="#eliminate_join_marks-873"><span class="linenos">873</span></a><span class="sd"> FROM employees e</span>
</span><span id="eliminate_join_marks-874"><a href="#eliminate_join_marks-874"><span class="linenos">874</span></a><span class="sd"> WHERE e.department_id(+) = d.department_id) AS total_salary</span>
</span><span id="eliminate_join_marks-875"><a href="#eliminate_join_marks-875"><span class="linenos">875</span></a><span class="sd"> FROM departments d;</span>
</span><span id="eliminate_join_marks-876"><a href="#eliminate_join_marks-876"><span class="linenos">876</span></a>
</span><span id="eliminate_join_marks-877"><a href="#eliminate_join_marks-877"><span class="linenos">877</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">columns</span><span class="p">:</span>
</span><span id="eliminate_join_marks-878"><a href="#eliminate_join_marks-878"><span class="linenos">878</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">column</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;join_mark&quot;</span><span class="p">):</span>
</span><span id="eliminate_join_marks-879"><a href="#eliminate_join_marks-879"><span class="linenos">879</span></a> <span class="k">continue</span>
</span><span id="eliminate_join_marks-880"><a href="#eliminate_join_marks-880"><span class="linenos">880</span></a>
</span><span id="eliminate_join_marks-881"><a href="#eliminate_join_marks-881"><span class="linenos">881</span></a> <span class="n">predicate</span> <span class="o">=</span> <span class="n">column</span><span class="o">.</span><span class="n">find_ancestor</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Predicate</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span>
</span><span id="eliminate_join_marks-882"><a href="#eliminate_join_marks-882"><span class="linenos">882</span></a> <span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span>
</span><span id="eliminate_join_marks-883"><a href="#eliminate_join_marks-883"><span class="linenos">883</span></a> <span class="n">predicate</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span>
</span><span id="eliminate_join_marks-884"><a href="#eliminate_join_marks-884"><span class="linenos">884</span></a> <span class="p">),</span> <span class="s2">&quot;Columns can only be marked with (+) when involved in a binary operation&quot;</span>
</span><span id="eliminate_join_marks-877"><a href="#eliminate_join_marks-877"><span class="linenos">877</span></a><span class="sd"> -- example of left correlation in from</span>
</span><span id="eliminate_join_marks-878"><a href="#eliminate_join_marks-878"><span class="linenos">878</span></a><span class="sd"> SELECT d.department_name, t.total_salary</span>
</span><span id="eliminate_join_marks-879"><a href="#eliminate_join_marks-879"><span class="linenos">879</span></a><span class="sd"> FROM departments d, (</span>
</span><span id="eliminate_join_marks-880"><a href="#eliminate_join_marks-880"><span class="linenos">880</span></a><span class="sd"> SELECT SUM(e.salary) AS total_salary</span>
</span><span id="eliminate_join_marks-881"><a href="#eliminate_join_marks-881"><span class="linenos">881</span></a><span class="sd"> FROM employees e</span>
</span><span id="eliminate_join_marks-882"><a href="#eliminate_join_marks-882"><span class="linenos">882</span></a><span class="sd"> WHERE e.department_id(+) = d.department_id</span>
</span><span id="eliminate_join_marks-883"><a href="#eliminate_join_marks-883"><span class="linenos">883</span></a><span class="sd"> ) t</span>
</span><span id="eliminate_join_marks-884"><a href="#eliminate_join_marks-884"><span class="linenos">884</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="eliminate_join_marks-885"><a href="#eliminate_join_marks-885"><span class="linenos">885</span></a>
</span><span id="eliminate_join_marks-886"><a href="#eliminate_join_marks-886"><span class="linenos">886</span></a> <span class="n">predicate_parent</span> <span class="o">=</span> <span class="n">predicate</span><span class="o">.</span><span class="n">parent</span>
</span><span id="eliminate_join_marks-887"><a href="#eliminate_join_marks-887"><span class="linenos">887</span></a> <span class="n">join_predicate</span> <span class="o">=</span> <span class="n">predicate</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
</span><span id="eliminate_join_marks-888"><a href="#eliminate_join_marks-888"><span class="linenos">888</span></a>
</span><span id="eliminate_join_marks-889"><a href="#eliminate_join_marks-889"><span class="linenos">889</span></a> <span class="n">left_columns</span> <span class="o">=</span> <span class="p">[</span>
</span><span id="eliminate_join_marks-890"><a href="#eliminate_join_marks-890"><span class="linenos">890</span></a> <span class="n">c</span> <span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">join_predicate</span><span class="o">.</span><span class="n">left</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="k">if</span> <span class="n">c</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;join_mark&quot;</span><span class="p">)</span>
</span><span id="eliminate_join_marks-891"><a href="#eliminate_join_marks-891"><span class="linenos">891</span></a> <span class="p">]</span>
</span><span id="eliminate_join_marks-892"><a href="#eliminate_join_marks-892"><span class="linenos">892</span></a> <span class="n">right_columns</span> <span class="o">=</span> <span class="p">[</span>
</span><span id="eliminate_join_marks-893"><a href="#eliminate_join_marks-893"><span class="linenos">893</span></a> <span class="n">c</span> <span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">join_predicate</span><span class="o">.</span><span class="n">right</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="k">if</span> <span class="n">c</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;join_mark&quot;</span><span class="p">)</span>
</span><span id="eliminate_join_marks-894"><a href="#eliminate_join_marks-894"><span class="linenos">894</span></a> <span class="p">]</span>
</span><span id="eliminate_join_marks-895"><a href="#eliminate_join_marks-895"><span class="linenos">895</span></a>
</span><span id="eliminate_join_marks-896"><a href="#eliminate_join_marks-896"><span class="linenos">896</span></a> <span class="k">assert</span> <span class="ow">not</span> <span class="p">(</span>
</span><span id="eliminate_join_marks-897"><a href="#eliminate_join_marks-897"><span class="linenos">897</span></a> <span class="n">left_columns</span> <span class="ow">and</span> <span class="n">right_columns</span>
</span><span id="eliminate_join_marks-898"><a href="#eliminate_join_marks-898"><span class="linenos">898</span></a> <span class="p">),</span> <span class="s2">&quot;The (+) marker cannot appear in both sides of a binary predicate&quot;</span>
</span><span id="eliminate_join_marks-886"><a href="#eliminate_join_marks-886"><span class="linenos">886</span></a> <span class="kn">from</span><span class="w"> </span><span class="nn">sqlglot.optimizer.scope</span><span class="w"> </span><span class="kn">import</span> <span class="n">traverse_scope</span>
</span><span id="eliminate_join_marks-887"><a href="#eliminate_join_marks-887"><span class="linenos">887</span></a> <span class="kn">from</span><span class="w"> </span><span class="nn">sqlglot.optimizer.normalize</span><span class="w"> </span><span class="kn">import</span> <span class="n">normalize</span><span class="p">,</span> <span class="n">normalized</span>
</span><span id="eliminate_join_marks-888"><a href="#eliminate_join_marks-888"><span class="linenos">888</span></a> <span class="kn">from</span><span class="w"> </span><span class="nn">collections</span><span class="w"> </span><span class="kn">import</span> <span class="n">defaultdict</span>
</span><span id="eliminate_join_marks-889"><a href="#eliminate_join_marks-889"><span class="linenos">889</span></a>
</span><span id="eliminate_join_marks-890"><a href="#eliminate_join_marks-890"><span class="linenos">890</span></a> <span class="c1"># we go in reverse to check the main query for left correlation</span>
</span><span id="eliminate_join_marks-891"><a href="#eliminate_join_marks-891"><span class="linenos">891</span></a> <span class="k">for</span> <span class="n">scope</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">traverse_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">)):</span>
</span><span id="eliminate_join_marks-892"><a href="#eliminate_join_marks-892"><span class="linenos">892</span></a> <span class="n">query</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</span><span class="n">expression</span>
</span><span id="eliminate_join_marks-893"><a href="#eliminate_join_marks-893"><span class="linenos">893</span></a>
</span><span id="eliminate_join_marks-894"><a href="#eliminate_join_marks-894"><span class="linenos">894</span></a> <span class="n">where</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;where&quot;</span><span class="p">)</span>
</span><span id="eliminate_join_marks-895"><a href="#eliminate_join_marks-895"><span class="linenos">895</span></a> <span class="n">joins</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;joins&quot;</span><span class="p">,</span> <span class="p">[])</span>
</span><span id="eliminate_join_marks-896"><a href="#eliminate_join_marks-896"><span class="linenos">896</span></a>
</span><span id="eliminate_join_marks-897"><a href="#eliminate_join_marks-897"><span class="linenos">897</span></a> <span class="c1"># knockout: we do not support left correlation (see point 2)</span>
</span><span id="eliminate_join_marks-898"><a href="#eliminate_join_marks-898"><span class="linenos">898</span></a> <span class="k">assert</span> <span class="ow">not</span> <span class="n">scope</span><span class="o">.</span><span class="n">is_correlated_subquery</span><span class="p">,</span> <span class="s2">&quot;Correlated queries are not supported&quot;</span>
</span><span id="eliminate_join_marks-899"><a href="#eliminate_join_marks-899"><span class="linenos">899</span></a>
</span><span id="eliminate_join_marks-900"><a href="#eliminate_join_marks-900"><span class="linenos">900</span></a> <span class="n">marked_column_tables</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span>
</span><span id="eliminate_join_marks-901"><a href="#eliminate_join_marks-901"><span class="linenos">901</span></a> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="n">left_columns</span> <span class="ow">or</span> <span class="n">right_columns</span><span class="p">:</span>
</span><span id="eliminate_join_marks-902"><a href="#eliminate_join_marks-902"><span class="linenos">902</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">col</span><span class="o">.</span><span class="n">table</span>
</span><span id="eliminate_join_marks-903"><a href="#eliminate_join_marks-903"><span class="linenos">903</span></a> <span class="k">assert</span> <span class="n">table</span><span class="p">,</span> <span class="sa">f</span><span class="s2">&quot;Column </span><span class="si">{</span><span class="n">col</span><span class="si">}</span><span class="s2"> needs to be qualified with a table&quot;</span>
</span><span id="eliminate_join_marks-904"><a href="#eliminate_join_marks-904"><span class="linenos">904</span></a>
</span><span id="eliminate_join_marks-905"><a href="#eliminate_join_marks-905"><span class="linenos">905</span></a> <span class="n">col</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;join_mark&quot;</span><span class="p">,</span> <span class="kc">False</span><span class="p">)</span>
</span><span id="eliminate_join_marks-906"><a href="#eliminate_join_marks-906"><span class="linenos">906</span></a> <span class="n">marked_column_tables</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">table</span><span class="p">)</span>
</span><span id="eliminate_join_marks-900"><a href="#eliminate_join_marks-900"><span class="linenos">900</span></a> <span class="c1"># nothing to do - we check it here after knockout above</span>
</span><span id="eliminate_join_marks-901"><a href="#eliminate_join_marks-901"><span class="linenos">901</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">where</span> <span class="ow">or</span> <span class="ow">not</span> <span class="nb">any</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;join_mark&quot;</span><span class="p">)</span> <span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">where</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)):</span>
</span><span id="eliminate_join_marks-902"><a href="#eliminate_join_marks-902"><span class="linenos">902</span></a> <span class="k">continue</span>
</span><span id="eliminate_join_marks-903"><a href="#eliminate_join_marks-903"><span class="linenos">903</span></a>
</span><span id="eliminate_join_marks-904"><a href="#eliminate_join_marks-904"><span class="linenos">904</span></a> <span class="c1"># make sure we have AND of ORs to have clear join terms</span>
</span><span id="eliminate_join_marks-905"><a href="#eliminate_join_marks-905"><span class="linenos">905</span></a> <span class="n">where</span> <span class="o">=</span> <span class="n">normalize</span><span class="p">(</span><span class="n">where</span><span class="o">.</span><span class="n">this</span><span class="p">)</span>
</span><span id="eliminate_join_marks-906"><a href="#eliminate_join_marks-906"><span class="linenos">906</span></a> <span class="k">assert</span> <span class="n">normalized</span><span class="p">(</span><span class="n">where</span><span class="p">),</span> <span class="s2">&quot;Cannot normalize JOIN predicates&quot;</span>
</span><span id="eliminate_join_marks-907"><a href="#eliminate_join_marks-907"><span class="linenos">907</span></a>
</span><span id="eliminate_join_marks-908"><a href="#eliminate_join_marks-908"><span class="linenos">908</span></a> <span class="k">assert</span> <span class="p">(</span>
</span><span id="eliminate_join_marks-909"><a href="#eliminate_join_marks-909"><span class="linenos">909</span></a> <span class="nb">len</span><span class="p">(</span><span class="n">marked_column_tables</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span>
</span><span id="eliminate_join_marks-910"><a href="#eliminate_join_marks-910"><span class="linenos">910</span></a> <span class="p">),</span> <span class="s2">&quot;Columns of only a single table can be marked with (+) in a given binary predicate&quot;</span>
</span><span id="eliminate_join_marks-908"><a href="#eliminate_join_marks-908"><span class="linenos">908</span></a> <span class="n">joins_ons</span> <span class="o">=</span> <span class="n">defaultdict</span><span class="p">(</span><span class="nb">list</span><span class="p">)</span> <span class="c1"># dict of {name: list of join AND conditions}</span>
</span><span id="eliminate_join_marks-909"><a href="#eliminate_join_marks-909"><span class="linenos">909</span></a> <span class="k">for</span> <span class="n">cond</span> <span class="ow">in</span> <span class="p">[</span><span class="n">where</span><span class="p">]</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">where</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">where</span><span class="o">.</span><span class="n">flatten</span><span class="p">():</span>
</span><span id="eliminate_join_marks-910"><a href="#eliminate_join_marks-910"><span class="linenos">910</span></a> <span class="n">join_cols</span> <span class="o">=</span> <span class="p">[</span><span class="n">col</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="n">cond</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="k">if</span> <span class="n">col</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;join_mark&quot;</span><span class="p">)]</span>
</span><span id="eliminate_join_marks-911"><a href="#eliminate_join_marks-911"><span class="linenos">911</span></a>
</span><span id="eliminate_join_marks-912"><a href="#eliminate_join_marks-912"><span class="linenos">912</span></a> <span class="c1"># Add predicate if join already copied, or add join if it is new</span>
</span><span id="eliminate_join_marks-913"><a href="#eliminate_join_marks-913"><span class="linenos">913</span></a> <span class="n">join_this</span> <span class="o">=</span> <span class="n">old_joins</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">col</span><span class="o">.</span><span class="n">table</span><span class="p">,</span> <span class="n">query_from</span><span class="p">)</span><span class="o">.</span><span class="n">this</span>
</span><span id="eliminate_join_marks-914"><a href="#eliminate_join_marks-914"><span class="linenos">914</span></a> <span class="n">existing_join</span> <span class="o">=</span> <span class="n">new_joins</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">join_this</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">)</span>
</span><span id="eliminate_join_marks-915"><a href="#eliminate_join_marks-915"><span class="linenos">915</span></a> <span class="k">if</span> <span class="n">existing_join</span><span class="p">:</span>
</span><span id="eliminate_join_marks-916"><a href="#eliminate_join_marks-916"><span class="linenos">916</span></a> <span class="n">existing_join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;on&quot;</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span><span class="n">existing_join</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">&quot;on&quot;</span><span class="p">],</span> <span class="n">join_predicate</span><span class="p">))</span>
</span><span id="eliminate_join_marks-917"><a href="#eliminate_join_marks-917"><span class="linenos">917</span></a> <span class="k">else</span><span class="p">:</span>
</span><span id="eliminate_join_marks-918"><a href="#eliminate_join_marks-918"><span class="linenos">918</span></a> <span class="n">new_joins</span><span class="p">[</span><span class="n">join_this</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">]</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Join</span><span class="p">(</span>
</span><span id="eliminate_join_marks-919"><a href="#eliminate_join_marks-919"><span class="linenos">919</span></a> <span class="n">this</span><span class="o">=</span><span class="n">join_this</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">on</span><span class="o">=</span><span class="n">join_predicate</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">kind</span><span class="o">=</span><span class="s2">&quot;LEFT&quot;</span>
</span><span id="eliminate_join_marks-920"><a href="#eliminate_join_marks-920"><span class="linenos">920</span></a> <span class="p">)</span>
</span><span id="eliminate_join_marks-921"><a href="#eliminate_join_marks-921"><span class="linenos">921</span></a>
</span><span id="eliminate_join_marks-922"><a href="#eliminate_join_marks-922"><span class="linenos">922</span></a> <span class="c1"># If the parent of the target predicate is a binary node, then it now has only one child</span>
</span><span id="eliminate_join_marks-923"><a href="#eliminate_join_marks-923"><span class="linenos">923</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">predicate_parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">):</span>
</span><span id="eliminate_join_marks-924"><a href="#eliminate_join_marks-924"><span class="linenos">924</span></a> <span class="k">if</span> <span class="n">predicate_parent</span><span class="o">.</span><span class="n">left</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
</span><span id="eliminate_join_marks-925"><a href="#eliminate_join_marks-925"><span class="linenos">925</span></a> <span class="n">predicate_parent</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">predicate_parent</span><span class="o">.</span><span class="n">right</span><span class="p">)</span>
</span><span id="eliminate_join_marks-926"><a href="#eliminate_join_marks-926"><span class="linenos">926</span></a> <span class="k">else</span><span class="p">:</span>
</span><span id="eliminate_join_marks-927"><a href="#eliminate_join_marks-927"><span class="linenos">927</span></a> <span class="n">predicate_parent</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">predicate_parent</span><span class="o">.</span><span class="n">left</span><span class="p">)</span>
</span><span id="eliminate_join_marks-912"><a href="#eliminate_join_marks-912"><span class="linenos">912</span></a> <span class="n">left_join_table</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">col</span><span class="o">.</span><span class="n">table</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="n">join_cols</span><span class="p">)</span>
</span><span id="eliminate_join_marks-913"><a href="#eliminate_join_marks-913"><span class="linenos">913</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">left_join_table</span><span class="p">:</span>
</span><span id="eliminate_join_marks-914"><a href="#eliminate_join_marks-914"><span class="linenos">914</span></a> <span class="k">continue</span>
</span><span id="eliminate_join_marks-915"><a href="#eliminate_join_marks-915"><span class="linenos">915</span></a>
</span><span id="eliminate_join_marks-916"><a href="#eliminate_join_marks-916"><span class="linenos">916</span></a> <span class="k">assert</span> <span class="ow">not</span> <span class="p">(</span>
</span><span id="eliminate_join_marks-917"><a href="#eliminate_join_marks-917"><span class="linenos">917</span></a> <span class="nb">len</span><span class="p">(</span><span class="n">left_join_table</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">1</span>
</span><span id="eliminate_join_marks-918"><a href="#eliminate_join_marks-918"><span class="linenos">918</span></a> <span class="p">),</span> <span class="s2">&quot;Cannot combine JOIN predicates from different tables&quot;</span>
</span><span id="eliminate_join_marks-919"><a href="#eliminate_join_marks-919"><span class="linenos">919</span></a>
</span><span id="eliminate_join_marks-920"><a href="#eliminate_join_marks-920"><span class="linenos">920</span></a> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="n">join_cols</span><span class="p">:</span>
</span><span id="eliminate_join_marks-921"><a href="#eliminate_join_marks-921"><span class="linenos">921</span></a> <span class="n">col</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;join_mark&quot;</span><span class="p">,</span> <span class="kc">False</span><span class="p">)</span>
</span><span id="eliminate_join_marks-922"><a href="#eliminate_join_marks-922"><span class="linenos">922</span></a>
</span><span id="eliminate_join_marks-923"><a href="#eliminate_join_marks-923"><span class="linenos">923</span></a> <span class="n">joins_ons</span><span class="p">[</span><span class="n">left_join_table</span><span class="o">.</span><span class="n">pop</span><span class="p">()]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">cond</span><span class="p">)</span>
</span><span id="eliminate_join_marks-924"><a href="#eliminate_join_marks-924"><span class="linenos">924</span></a>
</span><span id="eliminate_join_marks-925"><a href="#eliminate_join_marks-925"><span class="linenos">925</span></a> <span class="n">old_joins</span> <span class="o">=</span> <span class="p">{</span><span class="n">join</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">:</span> <span class="n">join</span> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">joins</span><span class="p">}</span>
</span><span id="eliminate_join_marks-926"><a href="#eliminate_join_marks-926"><span class="linenos">926</span></a> <span class="n">new_joins</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="eliminate_join_marks-927"><a href="#eliminate_join_marks-927"><span class="linenos">927</span></a> <span class="n">query_from</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">&quot;from&quot;</span><span class="p">]</span>
</span><span id="eliminate_join_marks-928"><a href="#eliminate_join_marks-928"><span class="linenos">928</span></a>
</span><span id="eliminate_join_marks-929"><a href="#eliminate_join_marks-929"><span class="linenos">929</span></a> <span class="n">only_old_join_sources</span> <span class="o">=</span> <span class="n">old_joins</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span> <span class="o">-</span> <span class="n">new_joins</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span>
</span><span id="eliminate_join_marks-930"><a href="#eliminate_join_marks-930"><span class="linenos">930</span></a>
</span><span id="eliminate_join_marks-931"><a href="#eliminate_join_marks-931"><span class="linenos">931</span></a> <span class="k">if</span> <span class="n">query_from</span><span class="o">.</span><span class="n">alias_or_name</span> <span class="ow">in</span> <span class="n">new_joins</span><span class="p">:</span>
</span><span id="eliminate_join_marks-932"><a href="#eliminate_join_marks-932"><span class="linenos">932</span></a> <span class="k">assert</span> <span class="p">(</span>
</span><span id="eliminate_join_marks-933"><a href="#eliminate_join_marks-933"><span class="linenos">933</span></a> <span class="nb">len</span><span class="p">(</span><span class="n">only_old_join_sources</span><span class="p">)</span> <span class="o">&gt;=</span> <span class="mi">1</span>
</span><span id="eliminate_join_marks-934"><a href="#eliminate_join_marks-934"><span class="linenos">934</span></a> <span class="p">),</span> <span class="s2">&quot;Cannot determine which table to use in the new FROM clause&quot;</span>
</span><span id="eliminate_join_marks-935"><a href="#eliminate_join_marks-935"><span class="linenos">935</span></a>
</span><span id="eliminate_join_marks-936"><a href="#eliminate_join_marks-936"><span class="linenos">936</span></a> <span class="n">new_from_name</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">only_old_join_sources</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
</span><span id="eliminate_join_marks-937"><a href="#eliminate_join_marks-937"><span class="linenos">937</span></a> <span class="n">query</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;from&quot;</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">From</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">old_joins</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">new_from_name</span><span class="p">)</span><span class="o">.</span><span class="n">this</span><span class="p">))</span>
</span><span id="eliminate_join_marks-938"><a href="#eliminate_join_marks-938"><span class="linenos">938</span></a> <span class="n">only_old_join_sources</span><span class="o">.</span><span class="n">remove</span><span class="p">(</span><span class="n">new_from_name</span><span class="p">)</span>
</span><span id="eliminate_join_marks-939"><a href="#eliminate_join_marks-939"><span class="linenos">939</span></a>
</span><span id="eliminate_join_marks-940"><a href="#eliminate_join_marks-940"><span class="linenos">940</span></a> <span class="k">if</span> <span class="n">new_joins</span><span class="p">:</span>
</span><span id="eliminate_join_marks-941"><a href="#eliminate_join_marks-941"><span class="linenos">941</span></a> <span class="n">only_old_join_expressions</span> <span class="o">=</span> <span class="p">[]</span>
</span><span id="eliminate_join_marks-942"><a href="#eliminate_join_marks-942"><span class="linenos">942</span></a> <span class="k">for</span> <span class="n">old_join_source</span> <span class="ow">in</span> <span class="n">only_old_join_sources</span><span class="p">:</span>
</span><span id="eliminate_join_marks-943"><a href="#eliminate_join_marks-943"><span class="linenos">943</span></a> <span class="n">old_join_expression</span> <span class="o">=</span> <span class="n">old_joins</span><span class="p">[</span><span class="n">old_join_source</span><span class="p">]</span>
</span><span id="eliminate_join_marks-944"><a href="#eliminate_join_marks-944"><span class="linenos">944</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">old_join_expression</span><span class="o">.</span><span class="n">kind</span><span class="p">:</span>
</span><span id="eliminate_join_marks-945"><a href="#eliminate_join_marks-945"><span class="linenos">945</span></a> <span class="n">old_join_expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;kind&quot;</span><span class="p">,</span> <span class="s2">&quot;CROSS&quot;</span><span class="p">)</span>
</span><span id="eliminate_join_marks-946"><a href="#eliminate_join_marks-946"><span class="linenos">946</span></a>
</span><span id="eliminate_join_marks-947"><a href="#eliminate_join_marks-947"><span class="linenos">947</span></a> <span class="n">only_old_join_expressions</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">old_join_expression</span><span class="p">)</span>
</span><span id="eliminate_join_marks-948"><a href="#eliminate_join_marks-948"><span class="linenos">948</span></a>
</span><span id="eliminate_join_marks-949"><a href="#eliminate_join_marks-949"><span class="linenos">949</span></a> <span class="n">query</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;joins&quot;</span><span class="p">,</span> <span class="nb">list</span><span class="p">(</span><span class="n">new_joins</span><span class="o">.</span><span class="n">values</span><span class="p">())</span> <span class="o">+</span> <span class="n">only_old_join_expressions</span><span class="p">)</span>
</span><span id="eliminate_join_marks-950"><a href="#eliminate_join_marks-950"><span class="linenos">950</span></a>
</span><span id="eliminate_join_marks-951"><a href="#eliminate_join_marks-951"><span class="linenos">951</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">where</span><span class="o">.</span><span class="n">this</span><span class="p">:</span>
</span><span id="eliminate_join_marks-952"><a href="#eliminate_join_marks-952"><span class="linenos">952</span></a> <span class="n">where</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
</span><span id="eliminate_join_marks-953"><a href="#eliminate_join_marks-953"><span class="linenos">953</span></a>
</span><span id="eliminate_join_marks-954"><a href="#eliminate_join_marks-954"><span class="linenos">954</span></a> <span class="k">return</span> <span class="n">expression</span>
</span><span id="eliminate_join_marks-929"><a href="#eliminate_join_marks-929"><span class="linenos">929</span></a> <span class="k">for</span> <span class="n">table</span><span class="p">,</span> <span class="n">predicates</span> <span class="ow">in</span> <span class="n">joins_ons</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
</span><span id="eliminate_join_marks-930"><a href="#eliminate_join_marks-930"><span class="linenos">930</span></a> <span class="n">join_what</span> <span class="o">=</span> <span class="n">old_joins</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table</span><span class="p">,</span> <span class="n">query_from</span><span class="p">)</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
</span><span id="eliminate_join_marks-931"><a href="#eliminate_join_marks-931"><span class="linenos">931</span></a> <span class="n">new_joins</span><span class="p">[</span><span class="n">join_what</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">]</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Join</span><span class="p">(</span>
</span><span id="eliminate_join_marks-932"><a href="#eliminate_join_marks-932"><span class="linenos">932</span></a> <span class="n">this</span><span class="o">=</span><span class="n">join_what</span><span class="p">,</span> <span class="n">on</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span><span class="o">*</span><span class="n">predicates</span><span class="p">),</span> <span class="n">kind</span><span class="o">=</span><span class="s2">&quot;LEFT&quot;</span>
</span><span id="eliminate_join_marks-933"><a href="#eliminate_join_marks-933"><span class="linenos">933</span></a> <span class="p">)</span>
</span><span id="eliminate_join_marks-934"><a href="#eliminate_join_marks-934"><span class="linenos">934</span></a>
</span><span id="eliminate_join_marks-935"><a href="#eliminate_join_marks-935"><span class="linenos">935</span></a> <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="n">predicates</span><span class="p">:</span>
</span><span id="eliminate_join_marks-936"><a href="#eliminate_join_marks-936"><span class="linenos">936</span></a> <span class="k">while</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">p</span><span class="o">.</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">):</span>
</span><span id="eliminate_join_marks-937"><a href="#eliminate_join_marks-937"><span class="linenos">937</span></a> <span class="n">p</span><span class="o">.</span><span class="n">parent</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">p</span><span class="p">)</span>
</span><span id="eliminate_join_marks-938"><a href="#eliminate_join_marks-938"><span class="linenos">938</span></a>
</span><span id="eliminate_join_marks-939"><a href="#eliminate_join_marks-939"><span class="linenos">939</span></a> <span class="n">parent</span> <span class="o">=</span> <span class="n">p</span><span class="o">.</span><span class="n">parent</span>
</span><span id="eliminate_join_marks-940"><a href="#eliminate_join_marks-940"><span class="linenos">940</span></a> <span class="n">p</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
</span><span id="eliminate_join_marks-941"><a href="#eliminate_join_marks-941"><span class="linenos">941</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">):</span>
</span><span id="eliminate_join_marks-942"><a href="#eliminate_join_marks-942"><span class="linenos">942</span></a> <span class="n">parent</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">parent</span><span class="o">.</span><span class="n">right</span> <span class="k">if</span> <span class="n">parent</span><span class="o">.</span><span class="n">left</span> <span class="ow">is</span> <span class="kc">None</span> <span class="k">else</span> <span class="n">parent</span><span class="o">.</span><span class="n">left</span><span class="p">)</span>
</span><span id="eliminate_join_marks-943"><a href="#eliminate_join_marks-943"><span class="linenos">943</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Where</span><span class="p">):</span>
</span><span id="eliminate_join_marks-944"><a href="#eliminate_join_marks-944"><span class="linenos">944</span></a> <span class="n">parent</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
</span><span id="eliminate_join_marks-945"><a href="#eliminate_join_marks-945"><span class="linenos">945</span></a>
</span><span id="eliminate_join_marks-946"><a href="#eliminate_join_marks-946"><span class="linenos">946</span></a> <span class="k">if</span> <span class="n">query_from</span><span class="o">.</span><span class="n">alias_or_name</span> <span class="ow">in</span> <span class="n">new_joins</span><span class="p">:</span>
</span><span id="eliminate_join_marks-947"><a href="#eliminate_join_marks-947"><span class="linenos">947</span></a> <span class="n">only_old_joins</span> <span class="o">=</span> <span class="n">old_joins</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span> <span class="o">-</span> <span class="n">new_joins</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span>
</span><span id="eliminate_join_marks-948"><a href="#eliminate_join_marks-948"><span class="linenos">948</span></a> <span class="k">assert</span> <span class="p">(</span>
</span><span id="eliminate_join_marks-949"><a href="#eliminate_join_marks-949"><span class="linenos">949</span></a> <span class="nb">len</span><span class="p">(</span><span class="n">only_old_joins</span><span class="p">)</span> <span class="o">&gt;=</span> <span class="mi">1</span>
</span><span id="eliminate_join_marks-950"><a href="#eliminate_join_marks-950"><span class="linenos">950</span></a> <span class="p">),</span> <span class="s2">&quot;Cannot determine which table to use in the new FROM clause&quot;</span>
</span><span id="eliminate_join_marks-951"><a href="#eliminate_join_marks-951"><span class="linenos">951</span></a>
</span><span id="eliminate_join_marks-952"><a href="#eliminate_join_marks-952"><span class="linenos">952</span></a> <span class="n">new_from_name</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">only_old_joins</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
</span><span id="eliminate_join_marks-953"><a href="#eliminate_join_marks-953"><span class="linenos">953</span></a> <span class="n">query</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;from&quot;</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">From</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">old_joins</span><span class="p">[</span><span class="n">new_from_name</span><span class="p">]</span><span class="o">.</span><span class="n">this</span><span class="p">))</span>
</span><span id="eliminate_join_marks-954"><a href="#eliminate_join_marks-954"><span class="linenos">954</span></a>
</span><span id="eliminate_join_marks-955"><a href="#eliminate_join_marks-955"><span class="linenos">955</span></a> <span class="k">if</span> <span class="n">new_joins</span><span class="p">:</span>
</span><span id="eliminate_join_marks-956"><a href="#eliminate_join_marks-956"><span class="linenos">956</span></a> <span class="k">for</span> <span class="n">n</span><span class="p">,</span> <span class="n">j</span> <span class="ow">in</span> <span class="n">old_joins</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> <span class="c1"># preserve any other joins</span>
</span><span id="eliminate_join_marks-957"><a href="#eliminate_join_marks-957"><span class="linenos">957</span></a> <span class="k">if</span> <span class="n">n</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">new_joins</span> <span class="ow">and</span> <span class="n">n</span> <span class="o">!=</span> <span class="n">query</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">&quot;from&quot;</span><span class="p">]</span><span class="o">.</span><span class="n">name</span><span class="p">:</span>
</span><span id="eliminate_join_marks-958"><a href="#eliminate_join_marks-958"><span class="linenos">958</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">j</span><span class="o">.</span><span class="n">kind</span><span class="p">:</span>
</span><span id="eliminate_join_marks-959"><a href="#eliminate_join_marks-959"><span class="linenos">959</span></a> <span class="n">j</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;kind&quot;</span><span class="p">,</span> <span class="s2">&quot;CROSS&quot;</span><span class="p">)</span>
</span><span id="eliminate_join_marks-960"><a href="#eliminate_join_marks-960"><span class="linenos">960</span></a> <span class="n">new_joins</span><span class="p">[</span><span class="n">n</span><span class="p">]</span> <span class="o">=</span> <span class="n">j</span>
</span><span id="eliminate_join_marks-961"><a href="#eliminate_join_marks-961"><span class="linenos">961</span></a> <span class="n">query</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;joins&quot;</span><span class="p">,</span> <span class="nb">list</span><span class="p">(</span><span class="n">new_joins</span><span class="o">.</span><span class="n">values</span><span class="p">()))</span>
</span><span id="eliminate_join_marks-962"><a href="#eliminate_join_marks-962"><span class="linenos">962</span></a>
</span><span id="eliminate_join_marks-963"><a href="#eliminate_join_marks-963"><span class="linenos">963</span></a> <span class="k">return</span> <span class="n">expression</span>
</span></pre></div>
<div class="docstring"><p>Remove join marks from an AST. This rule assumes that all marked columns are qualified.
If this does not hold for a query, consider running <code><a href="optimizer/qualify.html">sqlglot.optimizer.qualify</a></code> first.</p>
<div class="docstring"><p><a href="https://docs.oracle.com/cd/B19306_01/server.102/b14200/queries006.htm#sthref3178">https://docs.oracle.com/cd/B19306_01/server.102/b14200/queries006.htm#sthref3178</a></p>
<p>For example,
SELECT * FROM a, b WHERE a.id = b.id(+) -- ... is converted to
SELECT * FROM a LEFT JOIN b ON a.id = b.id -- this</p>
<ol>
<li><p>You cannot specify the (+) operator in a query block that also contains FROM clause join syntax.</p></li>
<li><p>The (+) operator can appear only in the WHERE clause or, in the context of left-correlation (that is, when specifying the TABLE clause) in the FROM clause, and can be applied only to a column of a table or view.</p></li>
</ol>
<h6 id="arguments">Arguments:</h6>
<p>The (+) operator does not produce an outer join if you specify one table in the outer query and the other table in an inner query.</p>
<ul>
<li><strong>expression:</strong> The AST to remove join marks from.</li>
</ul>
<p>You cannot use the (+) operator to outer-join a table to itself, although self joins are valid.</p>
<h6 id="returns">Returns:</h6>
<p>The (+) operator can be applied only to a column, not to an arbitrary expression. However, an arbitrary expression can contain one or more columns marked with the (+) operator.</p>
<blockquote>
<p>The AST with join marks removed.</p>
</blockquote>
<p>A WHERE condition containing the (+) operator cannot be combined with another condition using the OR logical operator.</p>
<p>A WHERE condition cannot use the IN comparison condition to compare a column marked with the (+) operator with an expression.</p>
<p>A WHERE condition cannot compare any column marked with the (+) operator with a subquery.</p>
<p>-- example with WHERE
SELECT d.department_name, sum(e.salary) as total_salary
FROM departments d, employees e
WHERE e.department_id(+) = d.department_id
group by department_name</p>
<p>-- example of left correlation in select
SELECT d.department_name, (
SELECT SUM(e.salary)
FROM employees e
WHERE e.department_id(+) = d.department_id) AS total_salary
FROM departments d;</p>
<p>-- example of left correlation in from
SELECT d.department_name, t.total_salary
FROM departments d, (
SELECT SUM(e.salary) AS total_salary
FROM employees e
WHERE e.department_id(+) = d.department_id
) t</p>
</div>
@ -2612,31 +2651,31 @@ If this does not hold for a query, consider running <code><a href="optimizer/qua
</div>
<a class="headerlink" href="#any_to_exists"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="any_to_exists-957"><a href="#any_to_exists-957"><span class="linenos">957</span></a><span class="k">def</span><span class="w"> </span><span class="nf">any_to_exists</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
</span><span id="any_to_exists-958"><a href="#any_to_exists-958"><span class="linenos">958</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="any_to_exists-959"><a href="#any_to_exists-959"><span class="linenos">959</span></a><span class="sd"> Transform ANY operator to Spark&#39;s EXISTS</span>
</span><span id="any_to_exists-960"><a href="#any_to_exists-960"><span class="linenos">960</span></a>
</span><span id="any_to_exists-961"><a href="#any_to_exists-961"><span class="linenos">961</span></a><span class="sd"> For example,</span>
</span><span id="any_to_exists-962"><a href="#any_to_exists-962"><span class="linenos">962</span></a><span class="sd"> - Postgres: SELECT * FROM tbl WHERE 5 &gt; ANY(tbl.col)</span>
</span><span id="any_to_exists-963"><a href="#any_to_exists-963"><span class="linenos">963</span></a><span class="sd"> - Spark: SELECT * FROM tbl WHERE EXISTS(tbl.col, x -&gt; x &lt; 5)</span>
</span><span id="any_to_exists-964"><a href="#any_to_exists-964"><span class="linenos">964</span></a>
</span><span id="any_to_exists-965"><a href="#any_to_exists-965"><span class="linenos">965</span></a><span class="sd"> Both ANY and EXISTS accept queries but currently only array expressions are supported for this</span>
</span><span id="any_to_exists-966"><a href="#any_to_exists-966"><span class="linenos">966</span></a><span class="sd"> transformation</span>
</span><span id="any_to_exists-967"><a href="#any_to_exists-967"><span class="linenos">967</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="any_to_exists-968"><a href="#any_to_exists-968"><span class="linenos">968</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">):</span>
</span><span id="any_to_exists-969"><a href="#any_to_exists-969"><span class="linenos">969</span></a> <span class="k">for</span> <span class="n">any_expr</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Any</span><span class="p">):</span>
</span><span id="any_to_exists-970"><a href="#any_to_exists-970"><span class="linenos">970</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">any_expr</span><span class="o">.</span><span class="n">this</span>
</span><span id="any_to_exists-971"><a href="#any_to_exists-971"><span class="linenos">971</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Query</span><span class="p">):</span>
</span><span id="any_to_exists-972"><a href="#any_to_exists-972"><span class="linenos">972</span></a> <span class="k">continue</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="any_to_exists-966"><a href="#any_to_exists-966"><span class="linenos">966</span></a><span class="k">def</span><span class="w"> </span><span class="nf">any_to_exists</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
</span><span id="any_to_exists-967"><a href="#any_to_exists-967"><span class="linenos">967</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
</span><span id="any_to_exists-968"><a href="#any_to_exists-968"><span class="linenos">968</span></a><span class="sd"> Transform ANY operator to Spark&#39;s EXISTS</span>
</span><span id="any_to_exists-969"><a href="#any_to_exists-969"><span class="linenos">969</span></a>
</span><span id="any_to_exists-970"><a href="#any_to_exists-970"><span class="linenos">970</span></a><span class="sd"> For example,</span>
</span><span id="any_to_exists-971"><a href="#any_to_exists-971"><span class="linenos">971</span></a><span class="sd"> - Postgres: SELECT * FROM tbl WHERE 5 &gt; ANY(tbl.col)</span>
</span><span id="any_to_exists-972"><a href="#any_to_exists-972"><span class="linenos">972</span></a><span class="sd"> - Spark: SELECT * FROM tbl WHERE EXISTS(tbl.col, x -&gt; x &lt; 5)</span>
</span><span id="any_to_exists-973"><a href="#any_to_exists-973"><span class="linenos">973</span></a>
</span><span id="any_to_exists-974"><a href="#any_to_exists-974"><span class="linenos">974</span></a> <span class="n">binop</span> <span class="o">=</span> <span class="n">any_expr</span><span class="o">.</span><span class="n">parent</span>
</span><span id="any_to_exists-975"><a href="#any_to_exists-975"><span class="linenos">975</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">binop</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">):</span>
</span><span id="any_to_exists-976"><a href="#any_to_exists-976"><span class="linenos">976</span></a> <span class="n">lambda_arg</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="s2">&quot;x&quot;</span><span class="p">)</span>
</span><span id="any_to_exists-977"><a href="#any_to_exists-977"><span class="linenos">977</span></a> <span class="n">any_expr</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">lambda_arg</span><span class="p">)</span>
</span><span id="any_to_exists-978"><a href="#any_to_exists-978"><span class="linenos">978</span></a> <span class="n">lambda_expr</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Lambda</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">binop</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expressions</span><span class="o">=</span><span class="p">[</span><span class="n">lambda_arg</span><span class="p">])</span>
</span><span id="any_to_exists-979"><a href="#any_to_exists-979"><span class="linenos">979</span></a> <span class="n">binop</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Exists</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">this</span><span class="o">.</span><span class="n">unnest</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">lambda_expr</span><span class="p">))</span>
</span><span id="any_to_exists-980"><a href="#any_to_exists-980"><span class="linenos">980</span></a>
</span><span id="any_to_exists-981"><a href="#any_to_exists-981"><span class="linenos">981</span></a> <span class="k">return</span> <span class="n">expression</span>
</span><span id="any_to_exists-974"><a href="#any_to_exists-974"><span class="linenos">974</span></a><span class="sd"> Both ANY and EXISTS accept queries but currently only array expressions are supported for this</span>
</span><span id="any_to_exists-975"><a href="#any_to_exists-975"><span class="linenos">975</span></a><span class="sd"> transformation</span>
</span><span id="any_to_exists-976"><a href="#any_to_exists-976"><span class="linenos">976</span></a><span class="sd"> &quot;&quot;&quot;</span>
</span><span id="any_to_exists-977"><a href="#any_to_exists-977"><span class="linenos">977</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">):</span>
</span><span id="any_to_exists-978"><a href="#any_to_exists-978"><span class="linenos">978</span></a> <span class="k">for</span> <span class="n">any_expr</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Any</span><span class="p">):</span>
</span><span id="any_to_exists-979"><a href="#any_to_exists-979"><span class="linenos">979</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">any_expr</span><span class="o">.</span><span class="n">this</span>
</span><span id="any_to_exists-980"><a href="#any_to_exists-980"><span class="linenos">980</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Query</span><span class="p">):</span>
</span><span id="any_to_exists-981"><a href="#any_to_exists-981"><span class="linenos">981</span></a> <span class="k">continue</span>
</span><span id="any_to_exists-982"><a href="#any_to_exists-982"><span class="linenos">982</span></a>
</span><span id="any_to_exists-983"><a href="#any_to_exists-983"><span class="linenos">983</span></a> <span class="n">binop</span> <span class="o">=</span> <span class="n">any_expr</span><span class="o">.</span><span class="n">parent</span>
</span><span id="any_to_exists-984"><a href="#any_to_exists-984"><span class="linenos">984</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">binop</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">):</span>
</span><span id="any_to_exists-985"><a href="#any_to_exists-985"><span class="linenos">985</span></a> <span class="n">lambda_arg</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="s2">&quot;x&quot;</span><span class="p">)</span>
</span><span id="any_to_exists-986"><a href="#any_to_exists-986"><span class="linenos">986</span></a> <span class="n">any_expr</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">lambda_arg</span><span class="p">)</span>
</span><span id="any_to_exists-987"><a href="#any_to_exists-987"><span class="linenos">987</span></a> <span class="n">lambda_expr</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Lambda</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">binop</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expressions</span><span class="o">=</span><span class="p">[</span><span class="n">lambda_arg</span><span class="p">])</span>
</span><span id="any_to_exists-988"><a href="#any_to_exists-988"><span class="linenos">988</span></a> <span class="n">binop</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Exists</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">this</span><span class="o">.</span><span class="n">unnest</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">lambda_expr</span><span class="p">))</span>
</span><span id="any_to_exists-989"><a href="#any_to_exists-989"><span class="linenos">989</span></a>
</span><span id="any_to_exists-990"><a href="#any_to_exists-990"><span class="linenos">990</span></a> <span class="k">return</span> <span class="n">expression</span>
</span></pre></div>
@ -2663,35 +2702,35 @@ transformation</p>
</div>
<a class="headerlink" href="#eliminate_window_clause"></a>
<div class="pdoc-code codehilite"><pre><span></span><span id="eliminate_window_clause-984"><a href="#eliminate_window_clause-984"><span class="linenos"> 984</span></a><span class="k">def</span><span class="w"> </span><span class="nf">eliminate_window_clause</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
</span><span id="eliminate_window_clause-985"><a href="#eliminate_window_clause-985"><span class="linenos"> 985</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Eliminates the `WINDOW` query clause by inling each named window.&quot;&quot;&quot;</span>
</span><span id="eliminate_window_clause-986"><a href="#eliminate_window_clause-986"><span class="linenos"> 986</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span> <span class="ow">and</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;windows&quot;</span><span class="p">):</span>
</span><span id="eliminate_window_clause-987"><a href="#eliminate_window_clause-987"><span class="linenos"> 987</span></a> <span class="kn">from</span><span class="w"> </span><span class="nn">sqlglot.optimizer.scope</span><span class="w"> </span><span class="kn">import</span> <span class="n">find_all_in_scope</span>
</span><span id="eliminate_window_clause-988"><a href="#eliminate_window_clause-988"><span class="linenos"> 988</span></a>
</span><span id="eliminate_window_clause-989"><a href="#eliminate_window_clause-989"><span class="linenos"> 989</span></a> <span class="n">windows</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">&quot;windows&quot;</span><span class="p">]</span>
</span><span id="eliminate_window_clause-990"><a href="#eliminate_window_clause-990"><span class="linenos"> 990</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;windows&quot;</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
</span><span id="eliminate_window_clause-991"><a href="#eliminate_window_clause-991"><span class="linenos"> 991</span></a>
</span><span id="eliminate_window_clause-992"><a href="#eliminate_window_clause-992"><span class="linenos"> 992</span></a> <span class="n">window_expression</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="eliminate_window_clause-993"><a href="#eliminate_window_clause-993"><span class="linenos"> 993</span></a>
</span><span id="eliminate_window_clause-994"><a href="#eliminate_window_clause-994"><span class="linenos"> 994</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">_inline_inherited_window</span><span class="p">(</span><span class="n">window</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kc">None</span><span class="p">:</span>
</span><span id="eliminate_window_clause-995"><a href="#eliminate_window_clause-995"><span class="linenos"> 995</span></a> <span class="n">inherited_window</span> <span class="o">=</span> <span class="n">window_expression</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">window</span><span class="o">.</span><span class="n">alias</span><span class="o">.</span><span class="n">lower</span><span class="p">())</span>
</span><span id="eliminate_window_clause-996"><a href="#eliminate_window_clause-996"><span class="linenos"> 996</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">inherited_window</span><span class="p">:</span>
</span><span id="eliminate_window_clause-997"><a href="#eliminate_window_clause-997"><span class="linenos"> 997</span></a> <span class="k">return</span>
</span><span id="eliminate_window_clause-998"><a href="#eliminate_window_clause-998"><span class="linenos"> 998</span></a>
</span><span id="eliminate_window_clause-999"><a href="#eliminate_window_clause-999"><span class="linenos"> 999</span></a> <span class="n">window</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;alias&quot;</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
</span><span id="eliminate_window_clause-1000"><a href="#eliminate_window_clause-1000"><span class="linenos">1000</span></a> <span class="k">for</span> <span class="n">key</span> <span class="ow">in</span> <span class="p">(</span><span class="s2">&quot;partition_by&quot;</span><span class="p">,</span> <span class="s2">&quot;order&quot;</span><span class="p">,</span> <span class="s2">&quot;spec&quot;</span><span class="p">):</span>
</span><span id="eliminate_window_clause-1001"><a href="#eliminate_window_clause-1001"><span class="linenos">1001</span></a> <span class="n">arg</span> <span class="o">=</span> <span class="n">inherited_window</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
</span><span id="eliminate_window_clause-1002"><a href="#eliminate_window_clause-1002"><span class="linenos">1002</span></a> <span class="k">if</span> <span class="n">arg</span><span class="p">:</span>
</span><span id="eliminate_window_clause-1003"><a href="#eliminate_window_clause-1003"><span class="linenos">1003</span></a> <span class="n">window</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">arg</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span>
</span><span id="eliminate_window_clause-1004"><a href="#eliminate_window_clause-1004"><span class="linenos">1004</span></a>
</span><span id="eliminate_window_clause-1005"><a href="#eliminate_window_clause-1005"><span class="linenos">1005</span></a> <span class="k">for</span> <span class="n">window</span> <span class="ow">in</span> <span class="n">windows</span><span class="p">:</span>
</span><span id="eliminate_window_clause-1006"><a href="#eliminate_window_clause-1006"><span class="linenos">1006</span></a> <span class="n">_inline_inherited_window</span><span class="p">(</span><span class="n">window</span><span class="p">)</span>
</span><span id="eliminate_window_clause-1007"><a href="#eliminate_window_clause-1007"><span class="linenos">1007</span></a> <span class="n">window_expression</span><span class="p">[</span><span class="n">window</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">lower</span><span class="p">()]</span> <span class="o">=</span> <span class="n">window</span>
</span><span id="eliminate_window_clause-1008"><a href="#eliminate_window_clause-1008"><span class="linenos">1008</span></a>
</span><span id="eliminate_window_clause-1009"><a href="#eliminate_window_clause-1009"><span class="linenos">1009</span></a> <span class="k">for</span> <span class="n">window</span> <span class="ow">in</span> <span class="n">find_all_in_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Window</span><span class="p">):</span>
</span><span id="eliminate_window_clause-1010"><a href="#eliminate_window_clause-1010"><span class="linenos">1010</span></a> <span class="n">_inline_inherited_window</span><span class="p">(</span><span class="n">window</span><span class="p">)</span>
</span><span id="eliminate_window_clause-1011"><a href="#eliminate_window_clause-1011"><span class="linenos">1011</span></a>
</span><span id="eliminate_window_clause-1012"><a href="#eliminate_window_clause-1012"><span class="linenos">1012</span></a> <span class="k">return</span> <span class="n">expression</span>
<div class="pdoc-code codehilite"><pre><span></span><span id="eliminate_window_clause-993"><a href="#eliminate_window_clause-993"><span class="linenos"> 993</span></a><span class="k">def</span><span class="w"> </span><span class="nf">eliminate_window_clause</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span>
</span><span id="eliminate_window_clause-994"><a href="#eliminate_window_clause-994"><span class="linenos"> 994</span></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Eliminates the `WINDOW` query clause by inling each named window.&quot;&quot;&quot;</span>
</span><span id="eliminate_window_clause-995"><a href="#eliminate_window_clause-995"><span class="linenos"> 995</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span> <span class="ow">and</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;windows&quot;</span><span class="p">):</span>
</span><span id="eliminate_window_clause-996"><a href="#eliminate_window_clause-996"><span class="linenos"> 996</span></a> <span class="kn">from</span><span class="w"> </span><span class="nn">sqlglot.optimizer.scope</span><span class="w"> </span><span class="kn">import</span> <span class="n">find_all_in_scope</span>
</span><span id="eliminate_window_clause-997"><a href="#eliminate_window_clause-997"><span class="linenos"> 997</span></a>
</span><span id="eliminate_window_clause-998"><a href="#eliminate_window_clause-998"><span class="linenos"> 998</span></a> <span class="n">windows</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">&quot;windows&quot;</span><span class="p">]</span>
</span><span id="eliminate_window_clause-999"><a href="#eliminate_window_clause-999"><span class="linenos"> 999</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;windows&quot;</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
</span><span id="eliminate_window_clause-1000"><a href="#eliminate_window_clause-1000"><span class="linenos">1000</span></a>
</span><span id="eliminate_window_clause-1001"><a href="#eliminate_window_clause-1001"><span class="linenos">1001</span></a> <span class="n">window_expression</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span>
</span><span id="eliminate_window_clause-1002"><a href="#eliminate_window_clause-1002"><span class="linenos">1002</span></a>
</span><span id="eliminate_window_clause-1003"><a href="#eliminate_window_clause-1003"><span class="linenos">1003</span></a> <span class="k">def</span><span class="w"> </span><span class="nf">_inline_inherited_window</span><span class="p">(</span><span class="n">window</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kc">None</span><span class="p">:</span>
</span><span id="eliminate_window_clause-1004"><a href="#eliminate_window_clause-1004"><span class="linenos">1004</span></a> <span class="n">inherited_window</span> <span class="o">=</span> <span class="n">window_expression</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">window</span><span class="o">.</span><span class="n">alias</span><span class="o">.</span><span class="n">lower</span><span class="p">())</span>
</span><span id="eliminate_window_clause-1005"><a href="#eliminate_window_clause-1005"><span class="linenos">1005</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">inherited_window</span><span class="p">:</span>
</span><span id="eliminate_window_clause-1006"><a href="#eliminate_window_clause-1006"><span class="linenos">1006</span></a> <span class="k">return</span>
</span><span id="eliminate_window_clause-1007"><a href="#eliminate_window_clause-1007"><span class="linenos">1007</span></a>
</span><span id="eliminate_window_clause-1008"><a href="#eliminate_window_clause-1008"><span class="linenos">1008</span></a> <span class="n">window</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;alias&quot;</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
</span><span id="eliminate_window_clause-1009"><a href="#eliminate_window_clause-1009"><span class="linenos">1009</span></a> <span class="k">for</span> <span class="n">key</span> <span class="ow">in</span> <span class="p">(</span><span class="s2">&quot;partition_by&quot;</span><span class="p">,</span> <span class="s2">&quot;order&quot;</span><span class="p">,</span> <span class="s2">&quot;spec&quot;</span><span class="p">):</span>
</span><span id="eliminate_window_clause-1010"><a href="#eliminate_window_clause-1010"><span class="linenos">1010</span></a> <span class="n">arg</span> <span class="o">=</span> <span class="n">inherited_window</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
</span><span id="eliminate_window_clause-1011"><a href="#eliminate_window_clause-1011"><span class="linenos">1011</span></a> <span class="k">if</span> <span class="n">arg</span><span class="p">:</span>
</span><span id="eliminate_window_clause-1012"><a href="#eliminate_window_clause-1012"><span class="linenos">1012</span></a> <span class="n">window</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">arg</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span>
</span><span id="eliminate_window_clause-1013"><a href="#eliminate_window_clause-1013"><span class="linenos">1013</span></a>
</span><span id="eliminate_window_clause-1014"><a href="#eliminate_window_clause-1014"><span class="linenos">1014</span></a> <span class="k">for</span> <span class="n">window</span> <span class="ow">in</span> <span class="n">windows</span><span class="p">:</span>
</span><span id="eliminate_window_clause-1015"><a href="#eliminate_window_clause-1015"><span class="linenos">1015</span></a> <span class="n">_inline_inherited_window</span><span class="p">(</span><span class="n">window</span><span class="p">)</span>
</span><span id="eliminate_window_clause-1016"><a href="#eliminate_window_clause-1016"><span class="linenos">1016</span></a> <span class="n">window_expression</span><span class="p">[</span><span class="n">window</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">lower</span><span class="p">()]</span> <span class="o">=</span> <span class="n">window</span>
</span><span id="eliminate_window_clause-1017"><a href="#eliminate_window_clause-1017"><span class="linenos">1017</span></a>
</span><span id="eliminate_window_clause-1018"><a href="#eliminate_window_clause-1018"><span class="linenos">1018</span></a> <span class="k">for</span> <span class="n">window</span> <span class="ow">in</span> <span class="n">find_all_in_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Window</span><span class="p">):</span>
</span><span id="eliminate_window_clause-1019"><a href="#eliminate_window_clause-1019"><span class="linenos">1019</span></a> <span class="n">_inline_inherited_window</span><span class="p">(</span><span class="n">window</span><span class="p">)</span>
</span><span id="eliminate_window_clause-1020"><a href="#eliminate_window_clause-1020"><span class="linenos">1020</span></a>
</span><span id="eliminate_window_clause-1021"><a href="#eliminate_window_clause-1021"><span class="linenos">1021</span></a> <span class="k">return</span> <span class="n">expression</span>
</span></pre></div>

2
docs/sqlglot/trie.html
View file

@ -3,7 +3,7 @@
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="generator" content="pdoc 15.0.3"/>
<meta name="generator" content="pdoc 15.0.4"/>
<title>sqlglot.trie API documentation</title>
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1
sqlglot/dialects/hive.py
View file

@ -557,6 +557,7 @@ class Hive(Dialect):
exp.GenerateDateArray: sequence_sql,
exp.If: if_sql(),
exp.ILike: no_ilike_sql,
exp.IntDiv: lambda self, e: self.binary(e, "DIV"),
exp.IsNan: rename_func("ISNAN"),
exp.JSONExtract: lambda self, e: self.func("GET_JSON_OBJECT", e.this, e.expression),
exp.JSONExtractScalar: lambda self, e: self.func(

25
sqlglot/dialects/mysql.py
View file

@ -489,6 +489,27 @@ class MySQL(Dialect):
VALUES_FOLLOWED_BY_PAREN = False
SUPPORTS_PARTITION_SELECTION = True
def _parse_generated_as_identity(
self,
) -> (
exp.GeneratedAsIdentityColumnConstraint
| exp.ComputedColumnConstraint
| exp.GeneratedAsRowColumnConstraint
):
this = super()._parse_generated_as_identity()
if self._match_texts(("STORED", "VIRTUAL")):
persisted = self._prev.text.upper() == "STORED"
if isinstance(this, exp.ComputedColumnConstraint):
this.set("persisted", persisted)
elif isinstance(this, exp.GeneratedAsIdentityColumnConstraint):
this = self.expression(
exp.ComputedColumnConstraint, this=this.expression, persisted=persisted
)
return this
def _parse_primary_key_part(self) -> t.Optional[exp.Expression]:
this = self._parse_id_var()
if not self._match(TokenType.L_PAREN):
@ -1154,6 +1175,10 @@ class MySQL(Dialect):
"zerofill",
}
def computedcolumnconstraint_sql(self, expression: exp.ComputedColumnConstraint) -> str:
persisted = "STORED" if expression.args.get("persisted") else "VIRTUAL"
return f"GENERATED ALWAYS AS ({self.sql(expression.this.unnest())}) {persisted}"
def array_sql(self, expression: exp.Array) -> str:
self.unsupported("Arrays are not supported by MySQL")
return self.function_fallback_sql(expression)

12
sqlglot/dialects/postgres.py
View file

@ -512,6 +512,18 @@ class Postgres(Dialect):
return this
def _parse_user_defined_type(
self, identifier: exp.Identifier
) -> t.Optional[exp.Expression]:
udt_type: exp.Identifier | exp.Dot = identifier
while self._match(TokenType.DOT):
part = self._parse_id_var()
if part:
udt_type = exp.Dot(this=udt_type, expression=part)
return exp.DataType.build(udt_type, udt=True)
class Generator(generator.Generator):
SINGLE_STRING_INTERVAL = True
RENAME_TABLE_WITH_DB = False

9
sqlglot/dialects/snowflake.py
View file

@ -863,8 +863,14 @@ class Snowflake(Dialect):
properties=self._parse_properties(),
)
def _parse_get(self) -> exp.Get | exp.Command:
def _parse_get(self) -> t.Optional[exp.Expression]:
start = self._prev
# If we detect GET( then we need to parse a function, not a statement
if self._match(TokenType.L_PAREN):
self._retreat(self._index - 2)
return self._parse_expression()
target = self._parse_location_path()
# Parse as command if unquoted file path
@ -1100,6 +1106,7 @@ class Snowflake(Dialect):
self, e, func_name="CHARINDEX", supports_position=True
),
exp.StrToDate: lambda self, e: self.func("DATE", e.this, self.format_time(e)),
exp.StringToArray: rename_func("STRTOK_TO_ARRAY"),
exp.Stuff: rename_func("INSERT"),
exp.StPoint: rename_func("ST_MAKEPOINT"),
exp.TimeAdd: date_delta_sql("TIMEADD"),

2
sqlglot/dialects/sqlite.py
View file

@ -109,7 +109,9 @@ class SQLite(Dialect):
"DATETIME": lambda args: exp.Anonymous(this="DATETIME", expressions=args),
"TIME": lambda args: exp.Anonymous(this="TIME", expressions=args),
}
STRING_ALIASES = True
ALTER_RENAME_REQUIRES_COLUMN = False
def _parse_unique(self) -> exp.UniqueColumnConstraint:
# Do not consume more tokens if UNIQUE is used as a standalone constraint, e.g:

26
sqlglot/expressions.py
View file

@ -51,8 +51,8 @@ class _Expression(type):
def __new__(cls, clsname, bases, attrs):
klass = super().__new__(cls, clsname, bases, attrs)
# When an Expression class is created, its key is automatically set to be
# the lowercase version of the class' name.
# When an Expression class is created, its key is automatically set
# to be the lowercase version of the class' name.
klass.key = clsname.lower()
# This is so that docstrings are not inherited in pdoc
@ -1724,15 +1724,15 @@ class Column(Condition):
if self.args.get(part)
]
def to_dot(self) -> Dot | Identifier:
def to_dot(self, include_dots: bool = True) -> Dot | Identifier:
"""Converts the column into a dot expression."""
parts = self.parts
parent = self.parent
while parent:
if isinstance(parent, Dot):
if include_dots:
while isinstance(parent, Dot):
parts.append(parent.expression)
parent = parent.parent
parent = parent.parent
return Dot.build(deepcopy(parts)) if len(parts) > 1 else parts[0]
@ -4753,6 +4753,8 @@ class DataType(Expression):
if udt:
return DataType(this=DataType.Type.USERDEFINED, kind=dtype, **kwargs)
raise
elif isinstance(dtype, (Identifier, Dot)) and udt:
return DataType(this=DataType.Type.USERDEFINED, kind=dtype, **kwargs)
elif isinstance(dtype, DataType.Type):
data_type_exp = DataType(this=dtype)
elif isinstance(dtype, DataType):
@ -4794,9 +4796,6 @@ class DataType(Expression):
return False
DATA_TYPE = t.Union[str, DataType, DataType.Type]
# https://www.postgresql.org/docs/15/datatype-pseudo.html
class PseudoType(DataType):
arg_types = {"this": True}
@ -4926,6 +4925,10 @@ class AddConstraint(Expression):
arg_types = {"expressions": True}
class AddPartition(Expression):
arg_types = {"this": True, "exists": False}
class AttachOption(Expression):
arg_types = {"this": True, "expression": False}
@ -5026,6 +5029,9 @@ class Dot(Binary):
return parts
DATA_TYPE = t.Union[str, Identifier, Dot, DataType, DataType.Type]
class DPipe(Binary):
arg_types = {"this": True, "expression": True, "safe": False}
@ -5587,7 +5593,7 @@ class String(Func):
class StringToArray(Func):
arg_types = {"this": True, "expression": True, "null": False}
arg_types = {"this": True, "expression": False, "null": False}
_sql_names = ["STRING_TO_ARRAY", "SPLIT_BY_STRING", "STRTOK_TO_ARRAY"]

4
sqlglot/generator.py
View file

@ -3498,6 +3498,10 @@ class Generator(metaclass=_Generator):
def addconstraint_sql(self, expression: exp.AddConstraint) -> str:
return f"ADD {self.expressions(expression)}"
def addpartition_sql(self, expression: exp.AddPartition) -> str:
exists = "IF NOT EXISTS " if expression.args.get("exists") else ""
return f"ADD {exists}{self.sql(expression.this)}"
def distinct_sql(self, expression: exp.Distinct) -> str:
this = self.expressions(expression, flat=True)

7
sqlglot/optimizer/scope.py
View file

@ -758,6 +758,8 @@ def _traverse_tables(scope):
expressions.extend(join.this for join in expression.args.get("joins") or [])
continue
child_scope = None
for child_scope in _traverse_scope(
scope.branch(
expression,
@ -775,8 +777,9 @@ def _traverse_tables(scope):
sources[expression.alias] = child_scope
# append the final child_scope yielded
scopes.append(child_scope)
scope.table_scopes.append(child_scope)
if child_scope:
scopes.append(child_scope)
scope.table_scopes.append(child_scope)
scope.sources.update(sources)

366
sqlglot/parser.py
View file

@ -932,11 +932,14 @@ class Parser(metaclass=_Parser):
PIPE_SYNTAX_TRANSFORM_PARSERS = {
"SELECT": lambda self, query: self._parse_pipe_syntax_select(query),
"WHERE": lambda self, query: self._parse_pipe_syntax_where(query),
"ORDER BY": lambda self, query: query.order_by(self._parse_order(), copy=False),
"WHERE": lambda self, query: query.where(self._parse_where(), copy=False),
"ORDER BY": lambda self, query: query.order_by(
self._parse_order(), append=False, copy=False
),
"LIMIT": lambda self, query: self._parse_pipe_syntax_limit(query),
"OFFSET": lambda self, query: query.offset(self._parse_offset(), copy=False),
"AGGREGATE": lambda self, query: self._parse_pipe_syntax_aggregate(query),
"PIVOT": lambda self, query: self._parse_pipe_syntax_pivot(query),
"UNPIVOT": lambda self, query: self._parse_pipe_syntax_pivot(query),
}
PROPERTY_PARSERS: t.Dict[str, t.Callable] = {
@ -1125,97 +1128,6 @@ class Parser(metaclass=_Parser):
"TRUNCATE": lambda self: self._parse_partitioned_by_bucket_or_truncate(),
}
def _parse_pipe_syntax_select(self, query: exp.Query) -> exp.Query:
select = self._parse_select()
if isinstance(select, exp.Select):
return select.from_(query.subquery(copy=False), copy=False)
return query
def _parse_pipe_syntax_where(self, query: exp.Query) -> exp.Query:
where = self._parse_where()
return query.where(where, copy=False)
def _parse_pipe_syntax_limit(self, query: exp.Query) -> exp.Query:
limit = self._parse_limit()
offset = self._parse_offset()
if limit:
query.limit(limit, copy=False)
if offset:
query.offset(offset, copy=False)
return query
def _parse_pipe_syntax_aggregate_fields(self) -> t.Optional[exp.Expression]:
this = self._parse_assignment()
if self._match_text_seq("GROUP", "AND", advance=False):
return this
this = self._parse_alias(this)
if self._match_set((TokenType.ASC, TokenType.DESC), advance=False):
return self._parse_ordered(lambda: this)
return this
def _parse_pipe_syntax_aggregate_group_order_by(
self, query: exp.Query, group_by_exists: bool = True
) -> exp.Query:
expr = self._parse_csv(self._parse_pipe_syntax_aggregate_fields)
aggregates_or_groups, orders = [], []
for element in expr:
if isinstance(element, exp.Ordered):
this = element.this
if isinstance(this, exp.Alias):
element.set("this", this.args["alias"])
orders.append(element)
else:
this = element
aggregates_or_groups.append(this)
if group_by_exists and isinstance(query, exp.Select):
query = query.select(*aggregates_or_groups, copy=False).group_by(
*[element.args.get("alias", element) for element in aggregates_or_groups],
copy=False,
)
else:
query = exp.select(*aggregates_or_groups, copy=False).from_(
query.subquery(copy=False), copy=False
)
if orders:
return query.order_by(*orders, copy=False)
return query
def _parse_pipe_syntax_aggregate(self, query: exp.Query) -> exp.Query:
self._match_text_seq("AGGREGATE")
query = self._parse_pipe_syntax_aggregate_group_order_by(query, group_by_exists=False)
if self._match(TokenType.GROUP_BY) or (
self._match_text_seq("GROUP", "AND") and self._match(TokenType.ORDER_BY)
):
return self._parse_pipe_syntax_aggregate_group_order_by(query)
return query
def _parse_pipe_syntax_set_operator(
self, query: t.Optional[exp.Query]
) -> t.Optional[exp.Query]:
first_setop = self.parse_set_operation(this=query)
if not first_setop or not query:
return None
first_setop.this.pop()
distinct = first_setop.args.pop("distinct")
setops = [first_setop.expression.pop(), *self._parse_expressions()]
if isinstance(first_setop, exp.Union):
return query.union(*setops, distinct=distinct, **first_setop.args)
if isinstance(first_setop, exp.Except):
return query.except_(*setops, distinct=distinct, **first_setop.args)
return query.intersect(*setops, distinct=distinct, **first_setop.args)
def _parse_partitioned_by_bucket_or_truncate(self) -> exp.Expression:
klass = (
exp.PartitionedByBucket
@ -1596,6 +1508,9 @@ class Parser(metaclass=_Parser):
# Whether the 'AS' keyword is optional in the CTE definition syntax
OPTIONAL_ALIAS_TOKEN_CTE = True
# Whether renaming a column with an ALTER statement requires the presence of the COLUMN keyword
ALTER_RENAME_REQUIRES_COLUMN = True
__slots__ = (
"error_level",
"error_message_context",
@ -1609,6 +1524,7 @@ class Parser(metaclass=_Parser):
"_next",
"_prev",
"_prev_comments",
"_pipe_cte_counter",
)
# Autofilled
@ -1639,6 +1555,7 @@ class Parser(metaclass=_Parser):
self._next = None
self._prev = None
self._prev_comments = None
self._pipe_cte_counter = 0
def parse(
self, raw_tokens: t.List[Token], sql: t.Optional[str] = None
@ -3335,9 +3252,11 @@ class Parser(metaclass=_Parser):
elif self._match(TokenType.VALUES, advance=False):
this = self._parse_derived_table_values()
elif from_:
this = exp.select("*").from_(from_.this, copy=False)
if self._match(TokenType.PIPE_GT, advance=False):
return self._parse_pipe_syntax_query(this)
return self._parse_pipe_syntax_query(
exp.Select().from_(from_.this, append=False, copy=False)
)
this = exp.select("*").from_(from_.this, copy=False)
elif self._match(TokenType.SUMMARIZE):
table = self._match(TokenType.TABLE)
this = self._parse_select() or self._parse_string() or self._parse_table()
@ -5203,6 +5122,14 @@ class Parser(metaclass=_Parser):
exp.DataTypeParam, this=this, expression=self._parse_var(any_token=True)
)
def _parse_user_defined_type(self, identifier: exp.Identifier) -> t.Optional[exp.Expression]:
type_name = identifier.name
while self._match(TokenType.DOT):
type_name = f"{type_name}.{self._advance_any() and self._prev.text}"
return exp.DataType.build(type_name, udt=True)
def _parse_types(
self, check_func: bool = False, schema: bool = False, allow_identifiers: bool = True
) -> t.Optional[exp.Expression]:
@ -5224,12 +5151,7 @@ class Parser(metaclass=_Parser):
if tokens[0].token_type in self.TYPE_TOKENS:
self._prev = tokens[0]
elif self.dialect.SUPPORTS_USER_DEFINED_TYPES:
type_name = identifier.name
while self._match(TokenType.DOT):
type_name = f"{type_name}.{self._advance_any() and self._prev.text}"
this = exp.DataType.build(type_name, udt=True)
this = self._parse_user_defined_type(identifier)
else:
self._retreat(self._index - 1)
return None
@ -5587,18 +5509,12 @@ class Parser(metaclass=_Parser):
else:
field = self._parse_field(any_token=True, anonymous_func=True)
# Function calls can be qualified, e.g., x.y.FOO()
# This converts the final AST to a series of Dots leading to the function call
# https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-reference#function_call_rules
if isinstance(field, (exp.Func, exp.Window)) and this:
# BQ & snowflake allow function calls like x.y.count(...), SAFE.SUBSTR(...) etc
# https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-reference#function_call_rules
this = exp.replace_tree(
this,
lambda n: (
self.expression(exp.Dot, this=n.args.get("table"), expression=n.this)
if n.table
else n.this
)
if isinstance(n, exp.Column)
else n,
this = this.transform(
lambda n: n.to_dot(include_dots=False) if isinstance(n, exp.Column) else n
)
if op:
@ -5973,7 +5889,11 @@ class Parser(metaclass=_Parser):
constraints.append(
self.expression(
exp.ColumnConstraint,
kind=exp.ComputedColumnConstraint(this=self._parse_disjunction()),
kind=exp.ComputedColumnConstraint(
this=self._parse_disjunction(),
persisted=self._match_texts(("STORED", "VIRTUAL"))
and self._prev.text.upper() == "STORED",
),
)
)
@ -7236,23 +7156,6 @@ class Parser(metaclass=_Parser):
return this
def _parse_pipe_syntax_query(self, query: exp.Query) -> t.Optional[exp.Query]:
while self._match(TokenType.PIPE_GT):
start = self._curr
parser = self.PIPE_SYNTAX_TRANSFORM_PARSERS.get(self._curr.text.upper())
if not parser:
set_op_query = self._parse_pipe_syntax_set_operator(query)
if not set_op_query:
self._retreat(start)
self.raise_error(f"Unsupported pipe syntax operator: '{start.text.upper()}'.")
break
query = set_op_query
else:
query = parser(self, query)
return query
def _parse_wrapped_id_vars(self, optional: bool = False) -> t.List[exp.Expression]:
return self._parse_wrapped_csv(self._parse_id_var, optional=optional)
@ -7331,24 +7234,29 @@ class Parser(metaclass=_Parser):
self._match(TokenType.TABLE)
return self.expression(exp.Refresh, this=self._parse_string() or self._parse_table())
def _parse_add_column(self) -> t.Optional[exp.Expression]:
def _parse_add_column(self) -> t.Optional[exp.ColumnDef]:
if not self._prev.text.upper() == "ADD":
return None
start = self._index
self._match(TokenType.COLUMN)
exists_column = self._parse_exists(not_=True)
expression = self._parse_field_def()
if expression:
expression.set("exists", exists_column)
if not isinstance(expression, exp.ColumnDef):
self._retreat(start)
return None
# https://docs.databricks.com/delta/update-schema.html#explicitly-update-schema-to-add-columns
if self._match_texts(("FIRST", "AFTER")):
position = self._prev.text
column_position = self.expression(
exp.ColumnPosition, this=self._parse_column(), position=position
)
expression.set("position", column_position)
expression.set("exists", exists_column)
# https://docs.databricks.com/delta/update-schema.html#explicitly-update-schema-to-add-columns
if self._match_texts(("FIRST", "AFTER")):
position = self._prev.text
column_position = self.expression(
exp.ColumnPosition, this=self._parse_column(), position=position
)
expression.set("position", column_position)
return expression
@ -7365,13 +7273,24 @@ class Parser(metaclass=_Parser):
)
def _parse_alter_table_add(self) -> t.List[exp.Expression]:
def _parse_add_column_or_constraint():
def _parse_add_alteration() -> t.Optional[exp.Expression]:
self._match_text_seq("ADD")
if self._match_set(self.ADD_CONSTRAINT_TOKENS, advance=False):
return self.expression(
exp.AddConstraint, expressions=self._parse_csv(self._parse_constraint)
)
return self._parse_add_column()
column_def = self._parse_add_column()
if isinstance(column_def, exp.ColumnDef):
return column_def
exists = self._parse_exists(not_=True)
if self._match_pair(TokenType.PARTITION, TokenType.L_PAREN, advance=False):
return self.expression(
exp.AddPartition, exists=exists, this=self._parse_field(any_token=True)
)
return None
if not self.dialect.ALTER_TABLE_ADD_REQUIRED_FOR_EACH_COLUMN or self._match_text_seq(
"COLUMNS"
@ -7380,7 +7299,7 @@ class Parser(metaclass=_Parser):
return ensure_list(schema) if schema else self._parse_csv(self._parse_field_def)
return self._parse_csv(_parse_add_column_or_constraint)
return self._parse_csv(_parse_add_alteration)
def _parse_alter_table_alter(self) -> t.Optional[exp.Expression]:
if self._match_texts(self.ALTER_ALTER_PARSERS):
@ -7458,7 +7377,7 @@ class Parser(metaclass=_Parser):
return self._parse_csv(self._parse_drop_column)
def _parse_alter_table_rename(self) -> t.Optional[exp.AlterRename | exp.RenameColumn]:
if self._match(TokenType.COLUMN):
if self._match(TokenType.COLUMN) or not self.ALTER_RENAME_REQUIRES_COLUMN:
exists = self._parse_exists()
old_column = self._parse_column()
to = self._match_text_seq("TO")
@ -8408,3 +8327,160 @@ class Parser(metaclass=_Parser):
expression = self.expression(exp.Identifier, this=token.text, **kwargs)
expression.update_positions(token)
return expression
def _build_pipe_cte(self, query: exp.Query, expressions: t.List[exp.Expression]) -> exp.Select:
if not query.selects:
query = query.select("*", copy=False)
self._pipe_cte_counter += 1
new_cte = f"__tmp{self._pipe_cte_counter}"
with_ = query.args.get("with")
ctes = with_.pop() if with_ else None
new_select = exp.select(*expressions, copy=False).from_(new_cte, copy=False)
if ctes:
new_select.set("with", ctes)
return new_select.with_(new_cte, as_=query, copy=False)
def _parse_pipe_syntax_select(self, query: exp.Select) -> exp.Select:
select = self._parse_select()
if not select:
return query
if not query.selects:
return self._build_pipe_cte(query.select(*select.expressions), [exp.Star()])
return self._build_pipe_cte(query, select.expressions)
def _parse_pipe_syntax_limit(self, query: exp.Select) -> exp.Select:
limit = self._parse_limit()
offset = self._parse_offset()
if limit:
curr_limit = query.args.get("limit", limit)
if curr_limit.expression.to_py() >= limit.expression.to_py():
query.limit(limit, copy=False)
if offset:
curr_offset = query.args.get("offset")
curr_offset = curr_offset.expression.to_py() if curr_offset else 0
query.offset(exp.Literal.number(curr_offset + offset.expression.to_py()), copy=False)
return query
def _parse_pipe_syntax_aggregate_fields(self) -> t.Optional[exp.Expression]:
this = self._parse_assignment()
if self._match_text_seq("GROUP", "AND", advance=False):
return this
this = self._parse_alias(this)
if self._match_set((TokenType.ASC, TokenType.DESC), advance=False):
return self._parse_ordered(lambda: this)
return this
def _parse_pipe_syntax_aggregate_group_order_by(
self, query: exp.Select, group_by_exists: bool = True
) -> exp.Select:
expr = self._parse_csv(self._parse_pipe_syntax_aggregate_fields)
aggregates_or_groups, orders = [], []
for element in expr:
if isinstance(element, exp.Ordered):
this = element.this
if isinstance(this, exp.Alias):
element.set("this", this.args["alias"])
orders.append(element)
else:
this = element
aggregates_or_groups.append(this)
if group_by_exists:
query = query.select(*aggregates_or_groups, copy=False).group_by(
*[projection.args.get("alias", projection) for projection in aggregates_or_groups],
copy=False,
)
else:
query = query.select(*aggregates_or_groups, copy=False)
if orders:
return query.order_by(*orders, append=False, copy=False)
return query
def _parse_pipe_syntax_aggregate(self, query: exp.Select) -> exp.Select:
self._match_text_seq("AGGREGATE")
query = self._parse_pipe_syntax_aggregate_group_order_by(query, group_by_exists=False)
if self._match(TokenType.GROUP_BY) or (
self._match_text_seq("GROUP", "AND") and self._match(TokenType.ORDER_BY)
):
query = self._parse_pipe_syntax_aggregate_group_order_by(query)
return self._build_pipe_cte(query, [exp.Star()])
def _parse_pipe_syntax_set_operator(
self, query: t.Optional[exp.Query]
) -> t.Optional[exp.Select]:
first_setop = self.parse_set_operation(this=query)
if not first_setop or not query:
return None
first_setop.this.pop()
distinct = first_setop.args.pop("distinct")
setops = [first_setop.expression.pop(), *self._parse_expressions()]
query = self._build_pipe_cte(query, [exp.Star()])
with_ = query.args.get("with")
ctes = with_.pop() if with_ else None
if isinstance(first_setop, exp.Union):
query = query.union(*setops, distinct=distinct, copy=False, **first_setop.args)
elif isinstance(first_setop, exp.Except):
query = query.except_(*setops, distinct=distinct, copy=False, **first_setop.args)
else:
query = query.intersect(*setops, distinct=distinct, copy=False, **first_setop.args)
query.set("with", ctes)
return self._build_pipe_cte(query, [exp.Star()])
def _parse_pipe_syntax_join(self, query: exp.Select) -> t.Optional[exp.Select]:
join = self._parse_join()
if not join:
return None
return query.join(join, copy=False)
def _parse_pipe_syntax_pivot(self, query: exp.Select) -> exp.Select:
pivots = self._parse_pivots()
if not pivots:
return query
from_ = query.args.get("from")
if from_:
from_.this.set("pivots", pivots)
return self._build_pipe_cte(query, [exp.Star()])
def _parse_pipe_syntax_query(self, query: exp.Select) -> t.Optional[exp.Select]:
while self._match(TokenType.PIPE_GT):
start = self._curr
parser = self.PIPE_SYNTAX_TRANSFORM_PARSERS.get(self._curr.text.upper())
if not parser:
parsed_query = self._parse_pipe_syntax_set_operator(
query
) or self._parse_pipe_syntax_join(query)
if not parsed_query:
self._retreat(start)
self.raise_error(f"Unsupported pipe syntax operator: '{start.text.upper()}'.")
break
query = parsed_query
else:
query = parser(self, query)
if query and not query.selects:
return query.select("*", copy=False)
return query

167
sqlglot/transforms.py
View file

@ -842,113 +842,122 @@ def struct_kv_to_alias(expression: exp.Expression) -> exp.Expression:
def eliminate_join_marks(expression: exp.Expression) -> exp.Expression:
"""https://docs.oracle.com/cd/B19306_01/server.102/b14200/queries006.htm#sthref3178
1. You cannot specify the (+) operator in a query block that also contains FROM clause join syntax.
2. The (+) operator can appear only in the WHERE clause or, in the context of left-correlation (that is, when specifying the TABLE clause) in the FROM clause, and can be applied only to a column of a table or view.
The (+) operator does not produce an outer join if you specify one table in the outer query and the other table in an inner query.
You cannot use the (+) operator to outer-join a table to itself, although self joins are valid.
The (+) operator can be applied only to a column, not to an arbitrary expression. However, an arbitrary expression can contain one or more columns marked with the (+) operator.
A WHERE condition containing the (+) operator cannot be combined with another condition using the OR logical operator.
A WHERE condition cannot use the IN comparison condition to compare a column marked with the (+) operator with an expression.
A WHERE condition cannot compare any column marked with the (+) operator with a subquery.
-- example with WHERE
SELECT d.department_name, sum(e.salary) as total_salary
FROM departments d, employees e
WHERE e.department_id(+) = d.department_id
group by department_name
-- example of left correlation in select
SELECT d.department_name, (
SELECT SUM(e.salary)
FROM employees e
WHERE e.department_id(+) = d.department_id) AS total_salary
FROM departments d;
-- example of left correlation in from
SELECT d.department_name, t.total_salary
FROM departments d, (
SELECT SUM(e.salary) AS total_salary
FROM employees e
WHERE e.department_id(+) = d.department_id
) t
"""
Remove join marks from an AST. This rule assumes that all marked columns are qualified.
If this does not hold for a query, consider running `sqlglot.optimizer.qualify` first.
For example,
SELECT * FROM a, b WHERE a.id = b.id(+) -- ... is converted to
SELECT * FROM a LEFT JOIN b ON a.id = b.id -- this
Args:
expression: The AST to remove join marks from.
Returns:
The AST with join marks removed.
"""
from sqlglot.optimizer.scope import traverse_scope
from sqlglot.optimizer.normalize import normalize, normalized
from collections import defaultdict
for scope in traverse_scope(expression):
# we go in reverse to check the main query for left correlation
for scope in reversed(traverse_scope(expression)):
query = scope.expression
where = query.args.get("where")
joins = query.args.get("joins")
joins = query.args.get("joins", [])
if not where or not joins:
# knockout: we do not support left correlation (see point 2)
assert not scope.is_correlated_subquery, "Correlated queries are not supported"
# nothing to do - we check it here after knockout above
if not where or not any(c.args.get("join_mark") for c in where.find_all(exp.Column)):
continue
query_from = query.args["from"]
# make sure we have AND of ORs to have clear join terms
where = normalize(where.this)
assert normalized(where), "Cannot normalize JOIN predicates"
# These keep track of the joins to be replaced
new_joins: t.Dict[str, exp.Join] = {}
old_joins = {join.alias_or_name: join for join in joins}
joins_ons = defaultdict(list) # dict of {name: list of join AND conditions}
for cond in [where] if not isinstance(where, exp.And) else where.flatten():
join_cols = [col for col in cond.find_all(exp.Column) if col.args.get("join_mark")]
for column in scope.columns:
if not column.args.get("join_mark"):
left_join_table = set(col.table for col in join_cols)
if not left_join_table:
continue
predicate = column.find_ancestor(exp.Predicate, exp.Select)
assert isinstance(
predicate, exp.Binary
), "Columns can only be marked with (+) when involved in a binary operation"
predicate_parent = predicate.parent
join_predicate = predicate.pop()
left_columns = [
c for c in join_predicate.left.find_all(exp.Column) if c.args.get("join_mark")
]
right_columns = [
c for c in join_predicate.right.find_all(exp.Column) if c.args.get("join_mark")
]
assert not (
left_columns and right_columns
), "The (+) marker cannot appear in both sides of a binary predicate"
marked_column_tables = set()
for col in left_columns or right_columns:
table = col.table
assert table, f"Column {col} needs to be qualified with a table"
len(left_join_table) > 1
), "Cannot combine JOIN predicates from different tables"
for col in join_cols:
col.set("join_mark", False)
marked_column_tables.add(table)
assert (
len(marked_column_tables) == 1
), "Columns of only a single table can be marked with (+) in a given binary predicate"
joins_ons[left_join_table.pop()].append(cond)
# Add predicate if join already copied, or add join if it is new
join_this = old_joins.get(col.table, query_from).this
existing_join = new_joins.get(join_this.alias_or_name)
if existing_join:
existing_join.set("on", exp.and_(existing_join.args["on"], join_predicate))
else:
new_joins[join_this.alias_or_name] = exp.Join(
this=join_this.copy(), on=join_predicate.copy(), kind="LEFT"
)
old_joins = {join.alias_or_name: join for join in joins}
new_joins = {}
query_from = query.args["from"]
# If the parent of the target predicate is a binary node, then it now has only one child
if isinstance(predicate_parent, exp.Binary):
if predicate_parent.left is None:
predicate_parent.replace(predicate_parent.right)
else:
predicate_parent.replace(predicate_parent.left)
for table, predicates in joins_ons.items():
join_what = old_joins.get(table, query_from).this.copy()
new_joins[join_what.alias_or_name] = exp.Join(
this=join_what, on=exp.and_(*predicates), kind="LEFT"
)
only_old_join_sources = old_joins.keys() - new_joins.keys()
for p in predicates:
while isinstance(p.parent, exp.Paren):
p.parent.replace(p)
parent = p.parent
p.pop()
if isinstance(parent, exp.Binary):
parent.replace(parent.right if parent.left is None else parent.left)
elif isinstance(parent, exp.Where):
parent.pop()
if query_from.alias_or_name in new_joins:
only_old_joins = old_joins.keys() - new_joins.keys()
assert (
len(only_old_join_sources) >= 1
len(only_old_joins) >= 1
), "Cannot determine which table to use in the new FROM clause"
new_from_name = list(only_old_join_sources)[0]
query.set("from", exp.From(this=old_joins.pop(new_from_name).this))
only_old_join_sources.remove(new_from_name)
new_from_name = list(only_old_joins)[0]
query.set("from", exp.From(this=old_joins[new_from_name].this))
if new_joins:
only_old_join_expressions = []
for old_join_source in only_old_join_sources:
old_join_expression = old_joins[old_join_source]
if not old_join_expression.kind:
old_join_expression.set("kind", "CROSS")
only_old_join_expressions.append(old_join_expression)
query.set("joins", list(new_joins.values()) + only_old_join_expressions)
if not where.this:
where.pop()
for n, j in old_joins.items(): # preserve any other joins
if n not in new_joins and n != query.args["from"].name:
if not j.kind:
j.set("kind", "CROSS")
new_joins[n] = j
query.set("joins", list(new_joins.values()))
return expression

1
tests/dialects/test_bigquery.py
View file

@ -42,6 +42,7 @@ class TestBigQuery(Validator):
self.assertEqual(table.db, "x-0")
self.assertEqual(table.name, "_y")
self.validate_identity("SAFE.SUBSTR('foo', 0, -2)").assert_is(exp.Dot)
self.validate_identity("SELECT * FROM x-0.y")
self.assertEqual(exp.to_table("`a.b`.`c.d`", dialect="bigquery").sql(), '"a"."b"."c"."d"')
self.assertEqual(exp.to_table("`x`.`y.z`", dialect="bigquery").sql(), '"x"."y"."z"')

138
tests/dialects/test_dialect.py
View file

@ -3504,141 +3504,3 @@ FROM subquery2""",
parse_one("SELECT 0xCC", read=read_dialect).sql(other_integer_dialects),
"SELECT 0xCC",
)
def test_pipe_syntax(self):
self.validate_identity("FROM x", "SELECT * FROM x")
self.validate_identity("FROM x |> SELECT x1, x2", "SELECT x1, x2 FROM (SELECT * FROM x)")
self.validate_identity(
"FROM x |> SELECT x1 as c1, x2 as c2",
"SELECT x1 AS c1, x2 AS c2 FROM (SELECT * FROM x)",
)
self.validate_identity(
"FROM x |> SELECT x1 + 1 as x1_a, x2 - 1 as x2_a |> WHERE x1_a > 1",
"SELECT x1 + 1 AS x1_a, x2 - 1 AS x2_a FROM (SELECT * FROM x) WHERE x1_a > 1",
)
self.validate_identity(
"FROM x |> SELECT x1 + 1 as x1_a, x2 - 1 as x2_a |> WHERE x1_a > 1 |> SELECT x2_a",
"SELECT x2_a FROM (SELECT x1 + 1 AS x1_a, x2 - 1 AS x2_a FROM (SELECT * FROM x) WHERE x1_a > 1)",
)
self.validate_identity(
"FROM x |> WHERE x1 > 0 OR x2 > 0 |> WHERE x3 > 1 AND x4 > 1 |> SELECT x1, x4",
"SELECT x1, x4 FROM (SELECT * FROM x WHERE (x1 > 0 OR x2 > 0) AND (x3 > 1 AND x4 > 1))",
)
self.validate_identity(
"FROM x |> WHERE x1 > 1 |> WHERE x2 > 2 |> SELECT x1 as gt1, x2 as gt2",
"SELECT x1 AS gt1, x2 AS gt2 FROM (SELECT * FROM x WHERE x1 > 1 AND x2 > 2)",
)
self.validate_identity(
"FROM x |> WHERE x1 > 1 AND x2 > 2 |> SELECT x1 as gt1, x2 as gt2 |> SELECT gt1 * 2 + gt2 * 2 AS gt2_2",
"SELECT gt1 * 2 + gt2 * 2 AS gt2_2 FROM (SELECT x1 AS gt1, x2 AS gt2 FROM (SELECT * FROM x WHERE x1 > 1 AND x2 > 2))",
)
self.validate_identity("FROM x |> ORDER BY x1", "SELECT * FROM x ORDER BY x1")
self.validate_identity(
"FROM x |> ORDER BY x1 |> ORDER BY x2", "SELECT * FROM x ORDER BY x1, x2"
)
self.validate_identity(
"FROM x |> ORDER BY x1 |> WHERE x1 > 0 OR x1 != 1 |> ORDER BY x2 |> WHERE x2 > 0 AND x2 != 1 |> SELECT x1, x2",
"SELECT x1, x2 FROM (SELECT * FROM x WHERE (x1 > 0 OR x1 <> 1) AND (x2 > 0 AND x2 <> 1) ORDER BY x1, x2)",
)
self.validate_identity(
"FROM x |> ORDER BY x1 |> WHERE x1 > 0 |> SELECT x1",
"SELECT x1 FROM (SELECT * FROM x WHERE x1 > 0 ORDER BY x1)",
)
self.validate_identity(
"FROM x |> WHERE x1 > 0 |> SELECT x1 |> ORDER BY x1",
"SELECT x1 FROM (SELECT * FROM x WHERE x1 > 0) ORDER BY x1",
)
self.validate_identity(
"FROM x |> SELECT x1, x2, x3 |> ORDER BY x1 DESC NULLS FIRST, x2 ASC NULLS LAST, x3",
"SELECT x1, x2, x3 FROM (SELECT * FROM x) ORDER BY x1 DESC NULLS FIRST, x2 ASC NULLS LAST, x3",
)
for option in ("LIMIT 1", "OFFSET 2", "LIMIT 1 OFFSET 2"):
with self.subTest(f"Testing pipe syntax LIMIT and OFFSET option: {option}"):
self.validate_identity(f"FROM x |> {option}", f"SELECT * FROM x {option}")
self.validate_identity(f"FROM x |> {option}", f"SELECT * FROM x {option}")
self.validate_identity(
f"FROM x |> {option} |> SELECT x1, x2 |> WHERE x1 > 0 |> WHERE x2 > 0 |> ORDER BY x1, x2 ",
f"SELECT x1, x2 FROM (SELECT * FROM x {option}) WHERE x1 > 0 AND x2 > 0 ORDER BY x1, x2",
)
self.validate_identity(
f"FROM x |> SELECT x1, x2 |> WHERE x1 > 0 |> WHERE x2 > 0 |> ORDER BY x1, x2 |> {option}",
f"SELECT x1, x2 FROM (SELECT * FROM x) WHERE x1 > 0 AND x2 > 0 ORDER BY x1, x2 {option}",
)
self.validate_identity(
"FROM x |> AGGREGATE SUM(x1), MAX(x2), MIN(x3)",
"SELECT SUM(x1), MAX(x2), MIN(x3) FROM (SELECT * FROM x)",
)
self.validate_identity(
"FROM x |> AGGREGATE SUM(x1) AS s_x1 |> SELECT s_x1",
"SELECT s_x1 FROM (SELECT SUM(x1) AS s_x1 FROM (SELECT * FROM x))",
)
self.validate_identity(
"FROM x |> AGGREGATE SUM(x1), MAX(x2), MIN(x3) GROUP BY x4, x5",
"SELECT SUM(x1), MAX(x2), MIN(x3), x4, x5 FROM (SELECT * FROM x) GROUP BY x4, x5",
)
self.validate_identity(
"FROM x |> AGGREGATE SUM(x1), MAX(x2), MIN(x3) GROUP BY x4 AS a_x4, x5 AS a_x5",
"SELECT SUM(x1), MAX(x2), MIN(x3), x4 AS a_x4, x5 AS a_x5 FROM (SELECT * FROM x) GROUP BY a_x4, a_x5",
)
self.validate_identity(
"FROM x |> AGGREGATE SUM(x1) as s_x1 GROUP BY x1 |> SELECT s_x1, x1 as ss_x1",
"SELECT s_x1, x1 AS ss_x1 FROM (SELECT SUM(x1) AS s_x1, x1 FROM (SELECT * FROM x) GROUP BY x1)",
)
self.validate_identity(
"FROM x |> AGGREGATE SUM(x1) GROUP", "SELECT SUM(x1) AS GROUP FROM (SELECT * FROM x)"
)
for order_option in ("ASC", "DESC", "ASC NULLS LAST", "DESC NULLS FIRST"):
with self.subTest(f"Testing pipe syntax AGGREGATE for order option: {order_option}"):
self.validate_all(
f"SELECT SUM(x1) AS x_s FROM (SELECT * FROM x) ORDER BY x_s {order_option}",
read={
"bigquery": f"FROM x |> AGGREGATE SUM(x1) AS x_s {order_option}",
},
)
self.validate_all(
f"SELECT SUM(x1) AS x_s, x1 AS g_x1 FROM (SELECT * FROM x) GROUP BY g_x1 ORDER BY x_s {order_option}",
read={
"bigquery": f"FROM x |> AGGREGATE SUM(x1) AS x_s {order_option} GROUP BY x1 AS g_x1",
},
)
with self.subTest(
f"Testing pipe syntax AGGREGATE with GROUP AND ORDER BY for order option: {order_option}"
):
self.validate_all(
f"SELECT g_x1, x_s FROM (SELECT SUM(x1) AS x_s, x1 AS g_x1 FROM (SELECT * FROM x) GROUP BY g_x1 ORDER BY g_x1 {order_option})",
read={
"bigquery": f"FROM x |> AGGREGATE SUM(x1) AS x_s GROUP AND ORDER BY x1 AS g_x1 {order_option} |> SELECT g_x1, x_s",
},
)
for op_operator in (
"UNION ALL",
"UNION DISTINCT",
"INTERSECT DISTINCT",
"EXCEPT DISTINCT",
):
with self.subTest(f"Testing pipe syntax SET OPERATORS: {op_operator}"):
self.validate_all(
f"FROM x|> {op_operator} (SELECT y1 FROM y), (SELECT z1 FROM z)",
write={
"bigquery": f"SELECT * FROM x {op_operator} (SELECT y1 FROM y) {op_operator} (SELECT z1 FROM z)",
},
)
for op_prefix in ("LEFT OUTER", "FULL OUTER"):
for op_operator in (
"UNION ALL",
"UNION DISTINCT",
"INTERSECT DISTINCT",
"EXCEPT DISTINCT",
):
for suffix_operator in ("BY NAME", "CORRESPONDING"):
with self.subTest(
f"Testing pipe syntax SET OPERATORS: {op_prefix} {op_operator} {suffix_operator}"
):
self.validate_all(
f"FROM x|> SELECT x1, x2 FROM x |> {op_prefix} {op_operator} {suffix_operator} (SELECT y1, y2 FROM y), (SELECT z1, z2 FROM z)",
write={
"bigquery": f"SELECT x1, x2 FROM (SELECT * FROM x) {op_prefix} {op_operator} BY NAME (SELECT y1, y2 FROM y) {op_prefix} {op_operator} BY NAME (SELECT z1, z2 FROM z)",
},
)

14
tests/dialects/test_hive.py
View file

@ -732,12 +732,20 @@ class TestHive(Validator):
},
)
self.validate_all(
"x div y",
"x DIV y",
read={
"databricks": "x DIV y",
"duckdb": "x // y",
"hive": "x DIV y",
"spark2": "x DIV y",
"spark": "x DIV y",
},
write={
"duckdb": "x // y",
"databricks": "x DIV y",
"presto": "CAST(CAST(x AS DOUBLE) / y AS INTEGER)",
"hive": "CAST(x / y AS INT)",
"spark": "CAST(x / y AS INT)",
"spark2": "x DIV y",
"spark": "x DIV y",
},
)
self.validate_all(

14
tests/dialects/test_mysql.py
View file

@ -89,6 +89,20 @@ class TestMySQL(Validator):
self.validate_identity(
"CREATE TABLE test_table (id INT AUTO_INCREMENT, PRIMARY KEY (id) USING HASH)"
)
self.validate_identity(
"CREATE TABLE test (a INT, b INT GENERATED ALWAYS AS (a + a) STORED)"
)
self.validate_identity(
"CREATE TABLE test (a INT, b INT GENERATED ALWAYS AS (a + a) VIRTUAL)"
)
self.validate_identity(
"CREATE TABLE test (a INT, b INT AS (a + a) STORED)",
"CREATE TABLE test (a INT, b INT GENERATED ALWAYS AS (a + a) STORED)",
)
self.validate_identity(
"CREATE TABLE test (a INT, b INT AS (a + a) VIRTUAL)",
"CREATE TABLE test (a INT, b INT GENERATED ALWAYS AS (a + a) VIRTUAL)",
)
self.validate_identity(
"/*left*/ EXPLAIN SELECT /*hint*/ col FROM t1 /*right*/",
"/* left */ DESCRIBE /* hint */ SELECT col FROM t1 /* right */",

380
tests/dialects/test_pipe_syntax.py Normal file
View file

@ -0,0 +1,380 @@
from tests.dialects.test_dialect import Validator
class TestPipeSyntax(Validator):
def test_select(self):
self.validate_identity("FROM x", "SELECT * FROM x")
self.validate_identity(
"FROM x |> SELECT x1, x2", "WITH __tmp1 AS (SELECT x1, x2 FROM x) SELECT * FROM __tmp1"
)
self.validate_identity(
"FROM x |> SELECT x.x1, x.x2",
"WITH __tmp1 AS (SELECT x.x1, x.x2 FROM x) SELECT * FROM __tmp1",
)
self.validate_identity(
"FROM x |> SELECT x1 as c1, x2 as c2",
"WITH __tmp1 AS (SELECT x1 AS c1, x2 AS c2 FROM x) SELECT * FROM __tmp1",
)
self.validate_identity(
"FROM x |> SELECT x1 + 1 as x1_a, x2 - 1 as x2_a |> WHERE x1_a > 1",
"WITH __tmp1 AS (SELECT x1 + 1 AS x1_a, x2 - 1 AS x2_a FROM x) SELECT * FROM __tmp1 WHERE x1_a > 1",
)
self.validate_identity(
"FROM x |> SELECT x1 + 1 as x1_a, x2 - 1 as x2_a |> WHERE x1_a > 1 |> SELECT x2_a",
"WITH __tmp1 AS (SELECT x1 + 1 AS x1_a, x2 - 1 AS x2_a FROM x), __tmp2 AS (SELECT * FROM __tmp1 WHERE x1_a > 1) SELECT x2_a FROM __tmp2",
)
self.validate_identity(
"FROM x |> WHERE x1 > 0 OR x2 > 0 |> WHERE x3 > 1 AND x4 > 1 |> SELECT x1, x4",
"WITH __tmp1 AS (SELECT x1, x4 FROM x WHERE (x1 > 0 OR x2 > 0) AND (x3 > 1 AND x4 > 1)) SELECT * FROM __tmp1",
)
self.validate_identity(
"FROM x |> WHERE x1 > 1 |> WHERE x2 > 2 |> SELECT x1 as gt1, x2 as gt2",
"WITH __tmp1 AS (SELECT x1 AS gt1, x2 AS gt2 FROM x WHERE x1 > 1 AND x2 > 2) SELECT * FROM __tmp1",
)
self.validate_identity(
"FROM x |> WHERE x1 > 1 AND x2 > 2 |> SELECT x1 as gt1, x2 as gt2 |> SELECT gt1 * 2 + gt2 * 2 AS gt2_2",
"WITH __tmp1 AS (SELECT x1 AS gt1, x2 AS gt2 FROM x WHERE x1 > 1 AND x2 > 2), __tmp2 AS (SELECT * FROM __tmp1) SELECT gt1 * 2 + gt2 * 2 AS gt2_2 FROM __tmp2",
)
def test_order_by(self):
self.validate_identity("FROM x |> ORDER BY x1", "SELECT * FROM x ORDER BY x1")
self.validate_identity(
"FROM x |> ORDER BY x1 |> ORDER BY x2", "SELECT * FROM x ORDER BY x2"
)
self.validate_identity(
"FROM x |> ORDER BY x1 |> WHERE x1 > 0 OR x1 != 1 |> ORDER BY x2 |> WHERE x2 > 0 AND x2 != 1 |> SELECT x1, x2",
"WITH __tmp1 AS (SELECT x1, x2 FROM x WHERE (x1 > 0 OR x1 <> 1) AND (x2 > 0 AND x2 <> 1) ORDER BY x2) SELECT * FROM __tmp1",
)
self.validate_identity(
"FROM x |> ORDER BY x1 |> WHERE x1 > 0 |> SELECT x1",
"WITH __tmp1 AS (SELECT x1 FROM x WHERE x1 > 0 ORDER BY x1) SELECT * FROM __tmp1",
)
self.validate_identity(
"FROM x |> WHERE x1 > 0 |> SELECT x1 |> ORDER BY x1",
"WITH __tmp1 AS (SELECT x1 FROM x WHERE x1 > 0) SELECT * FROM __tmp1 ORDER BY x1",
)
self.validate_identity(
"FROM x |> SELECT x1, x2, x3 |> ORDER BY x1 DESC NULLS FIRST, x2 ASC NULLS LAST, x3",
"WITH __tmp1 AS (SELECT x1, x2, x3 FROM x) SELECT * FROM __tmp1 ORDER BY x1 DESC NULLS FIRST, x2 ASC NULLS LAST, x3",
)
def test_limit(self):
for option in ("LIMIT 1", "LIMIT 1 OFFSET 2"):
with self.subTest(f"Testing pipe syntax LIMIT and OFFSET option: {option}"):
self.validate_identity(f"FROM x |> {option}", f"SELECT * FROM x {option}")
self.validate_identity(f"FROM x |> {option}", f"SELECT * FROM x {option}")
self.validate_identity(
f"FROM x |> {option} |> SELECT x1, x2 |> WHERE x1 > 0 |> WHERE x2 > 0 |> ORDER BY x1, x2",
f"WITH __tmp1 AS (SELECT x1, x2 FROM x {option}) SELECT * FROM __tmp1 WHERE x1 > 0 AND x2 > 0 ORDER BY x1, x2",
)
self.validate_identity(
f"FROM x |> SELECT x1, x2 |> WHERE x1 > 0 |> WHERE x2 > 0 |> ORDER BY x1, x2 |> {option}",
f"WITH __tmp1 AS (SELECT x1, x2 FROM x) SELECT * FROM __tmp1 WHERE x1 > 0 AND x2 > 0 ORDER BY x1, x2 {option}",
)
self.validate_identity(
"FROM x |> SELECT x1, x2 |> LIMIT 2 |> LIMIT 4",
"WITH __tmp1 AS (SELECT x1, x2 FROM x) SELECT * FROM __tmp1 LIMIT 2",
)
self.validate_identity(
"FROM x |> SELECT x1, x2 |> LIMIT 2 OFFSET 2 |> LIMIT 4 OFFSET 2",
"WITH __tmp1 AS (SELECT x1, x2 FROM x) SELECT * FROM __tmp1 LIMIT 2 OFFSET 4",
)
def test_aggregate(self):
self.validate_identity(
"FROM x |> AGGREGATE SUM(x1), MAX(x2), MIN(x3)",
"WITH __tmp1 AS (SELECT SUM(x1), MAX(x2), MIN(x3) FROM x) SELECT * FROM __tmp1",
)
self.validate_identity(
"FROM x |> AGGREGATE SUM(x1) AS s_x1 |> SELECT s_x1",
"WITH __tmp1 AS (SELECT SUM(x1) AS s_x1 FROM x), __tmp2 AS (SELECT * FROM __tmp1) SELECT s_x1 FROM __tmp2",
)
self.validate_identity(
"FROM x |> AGGREGATE SUM(x1), MAX(x2), MIN(x3) GROUP BY x4, x5",
"WITH __tmp1 AS (SELECT SUM(x1), MAX(x2), MIN(x3), x4, x5 FROM x GROUP BY x4, x5) SELECT * FROM __tmp1",
)
self.validate_identity(
"FROM x |> AGGREGATE SUM(x1), MAX(x2), MIN(x3) GROUP BY x4 AS a_x4, x5 AS a_x5",
"WITH __tmp1 AS (SELECT SUM(x1), MAX(x2), MIN(x3), x4 AS a_x4, x5 AS a_x5 FROM x GROUP BY a_x4, a_x5) SELECT * FROM __tmp1",
)
self.validate_identity(
"FROM x |> AGGREGATE SUM(x1) as s_x1 GROUP BY x1 |> SELECT s_x1, x1 as ss_x1",
"WITH __tmp1 AS (SELECT SUM(x1) AS s_x1, x1 FROM x GROUP BY x1), __tmp2 AS (SELECT * FROM __tmp1) SELECT s_x1, x1 AS ss_x1 FROM __tmp2",
)
self.validate_identity(
"FROM x |> AGGREGATE SUM(x1) GROUP",
"WITH __tmp1 AS (SELECT SUM(x1) AS GROUP FROM x) SELECT * FROM __tmp1",
)
self.validate_identity(
"FROM x |> AGGREGATE SUM(x1) as s_x1 GROUP BY x2 as g_x2 |> WHERE s_x1 > 0",
"WITH __tmp1 AS (SELECT SUM(x1) AS s_x1, x2 AS g_x2 FROM x GROUP BY g_x2) SELECT * FROM __tmp1 WHERE s_x1 > 0",
)
for order_option in ("ASC", "DESC", "ASC NULLS LAST", "DESC NULLS FIRST"):
with self.subTest(f"Testing pipe syntax AGGREGATE for order option: {order_option}"):
self.validate_all(
f"WITH __tmp1 AS (SELECT SUM(x1) AS x_s FROM x ORDER BY x_s {order_option}) SELECT * FROM __tmp1",
read={
"bigquery": f"FROM x |> AGGREGATE SUM(x1) AS x_s {order_option}",
},
)
self.validate_all(
f"WITH __tmp1 AS (SELECT SUM(x1) AS x_s, x1 AS g_x1 FROM x GROUP BY g_x1 ORDER BY x_s {order_option}) SELECT * FROM __tmp1",
read={
"bigquery": f"FROM x |> AGGREGATE SUM(x1) AS x_s {order_option} GROUP BY x1 AS g_x1",
},
)
with self.subTest(
f"Testing pipe syntax AGGREGATE with GROUP AND ORDER BY for order option: {order_option}"
):
self.validate_all(
f"WITH __tmp1 AS (SELECT SUM(x1) AS x_s, x1 AS g_x1 FROM x GROUP BY g_x1 ORDER BY g_x1 {order_option}), __tmp2 AS (SELECT * FROM __tmp1) SELECT g_x1, x_s FROM __tmp2",
read={
"bigquery": f"FROM x |> AGGREGATE SUM(x1) AS x_s GROUP AND ORDER BY x1 AS g_x1 {order_option} |> SELECT g_x1, x_s",
},
)
def test_set_operators(self):
self.validate_identity(
"FROM x |> SELECT x.x1 |> UNION ALL (SELECT 1 AS c)",
"WITH __tmp1 AS (SELECT x.x1 FROM x), __tmp2 AS (SELECT * FROM __tmp1), __tmp3 AS (SELECT * FROM __tmp2 UNION ALL (SELECT 1 AS c)) SELECT * FROM __tmp3",
)
for op_operator in (
"UNION ALL",
"UNION DISTINCT",
"INTERSECT DISTINCT",
"EXCEPT DISTINCT",
):
with self.subTest(f"Testing pipe syntax SET OPERATORS: {op_operator}"):
self.validate_all(
f"FROM x|> {op_operator} (SELECT y1 FROM y), (SELECT z1 FROM z)",
write={
"bigquery": f"WITH __tmp1 AS (SELECT * FROM x), __tmp2 AS (SELECT * FROM __tmp1 {op_operator} (SELECT y1 FROM y) {op_operator} (SELECT z1 FROM z)) SELECT * FROM __tmp2"
},
)
for op_prefix in ("LEFT OUTER", "FULL OUTER"):
for op_operator in (
"UNION ALL",
"UNION DISTINCT",
"INTERSECT DISTINCT",
"EXCEPT DISTINCT",
):
with self.subTest(f"Testing pipe syntax SET OPERATORS: {op_prefix} {op_operator}"):
self.validate_all(
f"FROM x|> SELECT x1, x2 |> {op_prefix} {op_operator} BY NAME (SELECT y1, y2 FROM y), (SELECT z1, z2 FROM z)",
write={
"bigquery": f"WITH __tmp1 AS (SELECT x1, x2 FROM x), __tmp2 AS (SELECT * FROM __tmp1), __tmp3 AS (SELECT * FROM __tmp2 {op_prefix} {op_operator} BY NAME (SELECT y1, y2 FROM y) {op_prefix} {op_operator} BY NAME (SELECT z1, z2 FROM z)) SELECT * FROM __tmp3",
},
)
self.validate_identity(
"FROM d.x |> SELECT x.x1 |> UNION (SELECT 2 AS a1) |> SELECT x1 |> UNION (SELECT 3 as a2) |> SELECT x1 |> WHERE x1 > 100",
"""WITH __tmp1 AS (
SELECT
x.x1
FROM d.x
), __tmp2 AS (
SELECT
*
FROM __tmp1
), __tmp3 AS (
SELECT
*
FROM __tmp2
UNION
(
SELECT
2 AS a1
)
), __tmp4 AS (
SELECT
*
FROM __tmp3
), __tmp5 AS (
SELECT
x1
FROM __tmp4
), __tmp6 AS (
SELECT
*
FROM __tmp5
UNION
(
SELECT
3 AS a2
)
), __tmp7 AS (
SELECT
*
FROM __tmp6
)
SELECT
x1
FROM __tmp7
WHERE
x1 > 100""",
pretty=True,
)
self.validate_identity(
"FROM c.x |> UNION ALL (SELECT 2 AS a1, '2' as a2) |> AGGREGATE AVG(x1) as m_x1 |> SELECT * |> UNION ALL (SELECT y1 FROM c.y) |> SELECT m_x1",
"""WITH __tmp1 AS (
SELECT
*
FROM c.x
), __tmp2 AS (
SELECT
*
FROM __tmp1
UNION ALL
(
SELECT
2 AS a1,
'2' AS a2
)
), __tmp3 AS (
SELECT
*,
AVG(x1) AS m_x1
FROM __tmp2
), __tmp4 AS (
SELECT
*
FROM __tmp3
), __tmp5 AS (
SELECT
*
FROM __tmp4
), __tmp6 AS (
SELECT
*
FROM __tmp5
UNION ALL
(
SELECT
y1
FROM c.y
)
), __tmp7 AS (
SELECT
*
FROM __tmp6
)
SELECT
m_x1
FROM __tmp7""",
pretty=True,
)
self.validate_identity(
"FROM c.x |> UNION ALL (SELECT 2 AS a1, '2' as a2) |> UNION ALL (SELECT y1 FROM c.y) |> WHERE x > 200",
"""WITH __tmp1 AS (
SELECT
*
FROM c.x
), __tmp2 AS (
SELECT
*
FROM __tmp1
UNION ALL
(
SELECT
2 AS a1,
'2' AS a2
)
), __tmp3 AS (
SELECT
*
FROM __tmp2
), __tmp4 AS (
SELECT
*
FROM __tmp3
UNION ALL
(
SELECT
y1
FROM c.y
)
)
SELECT
*
FROM __tmp4
WHERE
x > 200""",
pretty=True,
)
def test_join(self):
self.validate_identity("FROM x |> CROSS JOIN y", "SELECT * FROM x CROSS JOIN y")
for join_type in (
"JOIN",
"INNER JOIN",
"FULL JOIN",
"FULL OUTER JOIN",
"LEFT JOIN",
"LEFT OUTER JOIN",
"RIGHT JOIN",
"RIGHT OUTER JOIN",
):
with self.subTest(f"Testing pipe syntax no projecton with JOIN : {join_type}"):
self.validate_identity(
f"FROM x |> {join_type} y ON x.id = y.id",
f"SELECT * FROM x {join_type} y ON x.id = y.id",
)
with self.subTest(f"Testing pipe syntax projection with JOIN: {join_type}"):
self.validate_identity(
f"FROM x |> SELECT id |> {join_type} y ON x.id = y.id",
f"WITH __tmp1 AS (SELECT id FROM x) SELECT * FROM __tmp1 {join_type} y ON x.id = y.id",
)
with self.subTest(f"Testing pipe syntax complex queries with JOIN: {join_type}"):
self.validate_identity(
f"FROM x |> {join_type} y ON x.id = y.id |> SELECT x1 as a_x1, x2 |> UNION ALL (SELECT 1, 2) |> WHERE a_x1 > 0",
f"""WITH __tmp1 AS (
SELECT
x1 AS a_x1,
x2
FROM x
{join_type} y
ON x.id = y.id
), __tmp2 AS (
SELECT
*
FROM __tmp1
), __tmp3 AS (
SELECT
*
FROM __tmp2
UNION ALL
(
SELECT
1,
2
)
)
SELECT
*
FROM __tmp3
WHERE
a_x1 > 0""",
pretty=True,
)
def test_pivot_unpivot(self):
self.validate_identity(
"FROM x |> PIVOT(SUM(x1) FOR quarter IN ('foo1', 'foo2'))",
"WITH __tmp1 AS (SELECT * FROM x PIVOT(SUM(x1) FOR quarter IN ('foo1', 'foo2'))) SELECT * FROM __tmp1",
)
self.validate_identity(
"FROM x |> JOIN y on x.id = y.id |> PIVOT(SUM(x1) FOR quarter IN ('foo1', 'foo2'))",
"WITH __tmp1 AS (SELECT * FROM x PIVOT(SUM(x1) FOR quarter IN ('foo1', 'foo2')) JOIN y ON x.id = y.id) SELECT * FROM __tmp1",
)
self.validate_identity(
"FROM x |> UNPIVOT(col FOR item IN (foo1, foo2))",
"WITH __tmp1 AS (SELECT * FROM x UNPIVOT(col FOR item IN (foo1, foo2))) SELECT * FROM __tmp1",
)
self.validate_identity(
"FROM x |> JOIN y on x.id = y.id |> UNPIVOT(col FOR item IN (foo1, foo2))",
"WITH __tmp1 AS (SELECT * FROM x UNPIVOT(col FOR item IN (foo1, foo2)) JOIN y ON x.id = y.id) SELECT * FROM __tmp1",
)

11
tests/dialects/test_postgres.py
View file

@ -1449,3 +1449,14 @@ CROSS JOIN JSON_ARRAY_ELEMENTS(CAST(JSON_EXTRACT_PATH(tbox, 'boxes') AS JSON)) A
"clickhouse": "SELECT JSONExtractString(foo, '12')",
},
)
def test_udt(self):
def _validate_udt(sql: str):
self.validate_identity(sql).to.assert_is(exp.DataType)
_validate_udt("CAST(5 AS MyType)")
_validate_udt('CAST(5 AS "MyType")')
_validate_udt("CAST(5 AS MySchema.MyType)")
_validate_udt('CAST(5 AS "MySchema"."MyType")')
_validate_udt('CAST(5 AS MySchema."MyType")')
_validate_udt('CAST(5 AS "MyCatalog"."MySchema"."MyType")')

7
tests/dialects/test_snowflake.py
View file

@ -22,6 +22,9 @@ class TestSnowflake(Validator):
expr.selects[0].assert_is(exp.AggFunc)
self.assertEqual(expr.sql(dialect="snowflake"), "SELECT APPROX_TOP_K(C4, 3, 5) FROM t")
self.validate_identity("STRTOK_TO_ARRAY('a b c')")
self.validate_identity("STRTOK_TO_ARRAY('a.b.c', '.')")
self.validate_identity("GET(a, b)")
self.validate_identity("INSERT INTO test VALUES (x'48FAF43B0AFCEF9B63EE3A93EE2AC2')")
self.validate_identity("SELECT STAR(tbl, exclude := [foo])")
self.validate_identity("SELECT CAST([1, 2, 3] AS VECTOR(FLOAT, 3))")
@ -107,6 +110,10 @@ class TestSnowflake(Validator):
self.validate_identity(
"""SELECT TO_TIMESTAMP('2025-01-16T14:45:30.123+0500', 'yyyy-mm-DD"T"hh24:mi:ss.ff3TZHTZM')"""
)
self.validate_identity(
"GET(value, 'foo')::VARCHAR",
"CAST(GET(value, 'foo') AS VARCHAR)",
)
self.validate_identity(
"SELECT 1 put",
"SELECT 1 AS put",

2
tests/dialects/test_spark.py
View file

@ -247,6 +247,8 @@ TBLPROPERTIES (
"REFRESH TABLE t",
)
self.validate_identity("ALTER TABLE foo ADD PARTITION(event = 'click')")
self.validate_identity("ALTER TABLE foo ADD IF NOT EXISTS PARTITION(event = 'click')")
self.validate_identity("IF(cond, foo AS bar, bla AS baz)")
self.validate_identity("any_value(col, true)", "ANY_VALUE(col) IGNORE NULLS")
self.validate_identity("first(col, true)", "FIRST(col) IGNORE NULLS")

8
tests/dialects/test_sqlite.py
View file

@ -20,14 +20,18 @@ class TestSQLite(Validator):
self.validate_identity("SELECT (JULIANDAY('now') - 2440587.5) * 86400.0")
self.validate_identity("SELECT UNIXEPOCH('now', 'subsec')")
self.validate_identity("SELECT TIMEDIFF('now', '1809-02-12')")
self.validate_identity("SELECT * FROM GENERATE_SERIES(1, 5)")
self.validate_identity("SELECT INSTR(haystack, needle)")
self.validate_identity(
"SELECT JSON_EXTRACT('[10, 20, [30, 40]]', '$[2]', '$[0]', '$[1]')",
)
self.validate_identity(
"""SELECT item AS "item", some AS "some" FROM data WHERE (item = 'value_1' COLLATE NOCASE) AND (some = 't' COLLATE NOCASE) ORDER BY item ASC LIMIT 1 OFFSET 0"""
)
self.validate_identity("SELECT * FROM GENERATE_SERIES(1, 5)")
self.validate_identity("SELECT INSTR(haystack, needle)")
self.validate_identity(
"ALTER TABLE t RENAME a TO b",
"ALTER TABLE t RENAME COLUMN a TO b",
)
self.validate_all("SELECT LIKE(y, x)", write={"sqlite": "SELECT x LIKE y"})
self.validate_all("SELECT GLOB('*y*', 'xyz')", write={"sqlite": "SELECT 'xyz' GLOB '*y*'"})

2
tests/dialects/test_tsql.py
View file

@ -39,7 +39,7 @@ class TestTSQL(Validator):
self.validate_identity("CAST(x AS int) OR y", "CAST(x AS INTEGER) <> 0 OR y <> 0")
self.validate_identity("TRUNCATE TABLE t1 WITH (PARTITIONS(1, 2 TO 5, 10 TO 20, 84))")
self.validate_identity(
"SELECT TOP 10 s.RECORDID, n.c.value('(/*:FORM_ROOT/*:SOME_TAG)[1]', 'float') AS SOME_TAG_VALUE FROM source_table.dbo.source_data AS s(nolock) CROSS APPLY FormContent.nodes('/*:FORM_ROOT') AS N(C)"
"SELECT TOP 10 s.RECORDID, n.c.VALUE('(/*:FORM_ROOT/*:SOME_TAG)[1]', 'float') AS SOME_TAG_VALUE FROM source_table.dbo.source_data AS s(nolock) CROSS APPLY FormContent.nodes('/*:FORM_ROOT') AS N(C)"
)
self.validate_identity(
"CREATE CLUSTERED INDEX [IX_OfficeTagDetail_TagDetailID] ON [dbo].[OfficeTagDetail]([TagDetailID] ASC)"

4
tests/fixtures/identity.sql vendored
View file

@ -890,4 +890,6 @@ CAST(x AS UINT128)
CAST(x AS UINT256)
SELECT export
SELECT ARG_MAX(DISTINCT selected_col, filtered_col) FROM table
SELECT ARG_MIN(DISTINCT selected_col, filtered_col) FROM table
SELECT ARG_MIN(DISTINCT selected_col, filtered_col) FROM table
a.b.c.D()
a.b.c.d.e.f.G()

6
tests/test_parser.py
View file

@ -1003,3 +1003,9 @@ class TestParser(unittest.TestCase):
table_meta = ast.args["from"].this.this.meta
self.assertEqual(sql[table_meta["start"] : table_meta["end"] + 1], '"test_table_a"')
def test_qualified_function(self):
sql = "a.b.c.d.e.f.g.foo()"
ast = parse_one(sql)
assert not any(isinstance(n, exp.Column) for n in ast.walk())
assert len(list(ast.find_all(exp.Dot))) == 7

39
tests/test_transforms.py
View file

@ -17,7 +17,8 @@ class TestTransforms(unittest.TestCase):
def validate(self, transform, sql, target, dialect=None):
with self.subTest(f"{dialect} - {sql}"):
self.assertEqual(
parse_one(sql, dialect=dialect).transform(transform).sql(dialect=dialect), target
parse_one(sql, dialect=dialect).transform(transform).sql(dialect=dialect),
target,
)
def test_unalias_group(self):
@ -274,6 +275,42 @@ class TestTransforms(unittest.TestCase):
== "SELECT a.id FROM a LEFT JOIN b ON a.id = b.id AND b.d = const"
)
# validate parens
self.validate(
eliminate_join_marks,
"select t1.a, t2.b from t1, t2 where (1 = 1) and (t1.id = t2.id1 (+))",
"SELECT t1.a, t2.b FROM t1 LEFT JOIN t2 ON t1.id = t2.id1 WHERE (1 = 1)",
dialect,
)
# validate a CASE
self.validate(
eliminate_join_marks,
"select t1.a, t2.b from t1, t2 where t1.id = case when t2.id (+) = 'n/a' then null else t2.id (+) end",
"SELECT t1.a, t2.b FROM t1 LEFT JOIN t2 ON t1.id = CASE WHEN t2.id = 'n/a' THEN NULL ELSE t2.id END",
dialect,
)
# validate OR
self.validate(
eliminate_join_marks,
"select t1.a, t2.b from t1, t2 where t1.id = t2.id1 (+) or t1.id = t2.id2 (+)",
"SELECT t1.a, t2.b FROM t1 LEFT JOIN t2 ON t1.id = t2.id1 OR t1.id = t2.id2",
dialect,
)
# validate knockout
script = """
SELECT c.customer_name,
(SELECT MAX(o.order_date)
FROM orders o
WHERE o.customer_id(+) = c.customer_id) AS latest_order_date
FROM customers c
"""
self.assertRaises(
AssertionError, eliminate_join_marks, parse_one(script, dialect=dialect)
)
def test_eliminate_window_clause(self):
self.validate(
eliminate_window_clause,