Merging upstream version 18.11.6.

Signed-off-by: Daniel Baumann <daniel@debian.org>

CHANGELOG.md

@@ -1,6 +1,39 @@
 Changelog
 =========
 
+## [v18.11.5] - 2023-10-06
+### :sparkles: New Features
+- [`ae27e46`](https://github.com/tobymao/sqlglot/commit/ae27e46cf60bbbcb456997afe942a6e8ab9d03c1) - **spark**: from_utc_timestamp -> at time zone *(commit by [@tobymao](https://github.com/tobymao))*
+
+### :bug: Bug Fixes
+- [`d9bfaa7`](https://github.com/tobymao/sqlglot/commit/d9bfaa7a5d3a43c5fa1d34dd3b33d1847e0cbb13) - preserve identifiers in postgres merge *(commit by [@tobymao](https://github.com/tobymao))*
+
+
+## [v18.11.4] - 2023-10-05
+### :sparkles: New Features
+- [`3266e51`](https://github.com/tobymao/sqlglot/commit/3266e51fa3f2fcb311bc2fe8b212e423d4253082) - **bigquery**: improve support for CREATE MODEL DDL statement *(PR [#2380](https://github.com/tobymao/sqlglot/pull/2380) by [@GeorgeSittas](https://github.com/GeorgeSittas))*
+
+### :bug: Bug Fixes
+- [`dd8334d`](https://github.com/tobymao/sqlglot/commit/dd8334d35d757b7309246ceb4e00f077eb19c9d6) - **parser**: don't consume identifier in unnamed constraint parser *(PR [#2377](https://github.com/tobymao/sqlglot/pull/2377) by [@GeorgeSittas](https://github.com/GeorgeSittas))*
+  - :arrow_lower_right: *fixes issue [#2376](undefined) opened by [@Nitrino](https://github.com/Nitrino)*
+
+
+## [v18.11.3] - 2023-10-04
+### :sparkles: New Features
+- [`347ac51`](https://github.com/tobymao/sqlglot/commit/347ac51da6a553a7904739f0f3ad6b4bb4db01c6) - **redshift**: add support for Redshift's super array index iteration *(PR [#2373](https://github.com/tobymao/sqlglot/pull/2373) by [@GeorgeSittas](https://github.com/GeorgeSittas))*
+  - :arrow_lower_right: *addresses issue [#2372](undefined) opened by [@erdrix](https://github.com/erdrix)*
+- [`160d841`](https://github.com/tobymao/sqlglot/commit/160d8415d297f998a800c518ce2e85ec41deedae) - **bigquery**: add support for ML.PREDICT function *(PR [#2375](https://github.com/tobymao/sqlglot/pull/2375) by [@GeorgeSittas](https://github.com/GeorgeSittas))*
+
+### :bug: Bug Fixes
+- [`6a65a09`](https://github.com/tobymao/sqlglot/commit/6a65a096e69f2e0cee933d0221d0f6a93aeec159) - **postgres**: translate variance_pop to var_pop and variance to var_samp *(PR [#2371](https://github.com/tobymao/sqlglot/pull/2371) by [@cpcloud](https://github.com/cpcloud))*
+
+
+## [v18.11.2] - 2023-10-03
+### :bug: Bug Fixes
+- [`513fe2c`](https://github.com/tobymao/sqlglot/commit/513fe2c5cf06db2a797cdc0422a49a95103c403e) - **parser**: support END keyword when parsing create procedure DDLs *(PR [#2369](https://github.com/tobymao/sqlglot/pull/2369) by [@GeorgeSittas](https://github.com/GeorgeSittas))*
+- [`1ba5f98`](https://github.com/tobymao/sqlglot/commit/1ba5f98b400483e53d7b1c56a7d5a599f4926234) - distinct from parsing *(commit by [@tobymao](https://github.com/tobymao))*
+
+
 ## [v18.11.1] - 2023-10-03
 ### :bug: Bug Fixes
 - [`f777155`](https://github.com/tobymao/sqlglot/commit/f777155eb6249a51290d38eaa1dfa1f867a38602) - unescape escape sequences on read, re-escape them on generation *(PR [#2367](https://github.com/tobymao/sqlglot/pull/2367) by [@GeorgeSittas](https://github.com/GeorgeSittas))*
@@ -1630,4 +1663,8 @@ Changelog
 [v18.10.0]: https://github.com/tobymao/sqlglot/compare/v18.9.0...v18.10.0
 [v18.10.1]: https://github.com/tobymao/sqlglot/compare/v18.10.0...v18.10.1
 [v18.11.0]: https://github.com/tobymao/sqlglot/compare/v18.10.1...v18.11.0
-[v18.11.1]: https://github.com/tobymao/sqlglot/compare/v18.11.0...v18.11.1
+[v18.11.1]: https://github.com/tobymao/sqlglot/compare/v18.11.0...v18.11.1
+[v18.11.2]: https://github.com/tobymao/sqlglot/compare/v18.11.1...v18.11.2
+[v18.11.3]: https://github.com/tobymao/sqlglot/compare/v18.11.2...v18.11.3
+[v18.11.4]: https://github.com/tobymao/sqlglot/compare/v18.11.3...v18.11.4
+[v18.11.5]: https://github.com/tobymao/sqlglot/compare/v18.11.4...v18.11.5