dbcli/sqlglot
1
0
Fork 0
Code Issues Activity

Adding upstream version 23.7.0.

Browse source 
Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-13 21:30:02 +01:00
parent f1aa09959c
commit 27c061b7af
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
187 changed files with 86502 additions and 71397 deletions
Download patch file Download diff file Expand all files Collapse all files

40
sqlglot/dialects/presto.py
View file

@ -22,10 +22,13 @@ from sqlglot.dialects.dialect import (
rename_func,
right_to_substring_sql,
struct_extract_sql,
str_position_sql,
timestamptrunc_sql,
timestrtotime_sql,
ts_or_ds_add_cast,
unit_to_str,
)
from sqlglot.dialects.hive import Hive
from sqlglot.dialects.mysql import MySQL
from sqlglot.helper import apply_index_offset, seq_get
from sqlglot.tokens import TokenType
@ -93,14 +96,14 @@ def _ts_or_ds_to_date_sql(self: Presto.Generator, expression: exp.TsOrDsToDate)
def _ts_or_ds_add_sql(self: Presto.Generator, expression: exp.TsOrDsAdd) -> str:
expression = ts_or_ds_add_cast(expression)
unit = exp.Literal.string(expression.text("unit") or "DAY")
unit = unit_to_str(expression)
return self.func("DATE_ADD", unit, expression.expression, expression.this)
def _ts_or_ds_diff_sql(self: Presto.Generator, expression: exp.TsOrDsDiff) -> str:
this = exp.cast(expression.this, "TIMESTAMP")
expr = exp.cast(expression.expression, "TIMESTAMP")
unit = exp.Literal.string(expression.text("unit") or "DAY")
unit = unit_to_str(expression)
return self.func("DATE_DIFF", unit, expr, this)
@ -196,6 +199,7 @@ class Presto(Dialect):
SUPPORTS_SEMI_ANTI_JOIN = False
TYPED_DIVISION = True
TABLESAMPLE_SIZE_IS_PERCENT = True
LOG_BASE_FIRST: t.Optional[bool] = None
# https://github.com/trinodb/trino/issues/17
# https://github.com/trinodb/trino/issues/12289
@ -289,6 +293,7 @@ class Presto(Dialect):
SUPPORTS_SINGLE_ARG_CONCAT = False
LIKE_PROPERTY_INSIDE_SCHEMA = True
MULTI_ARG_DISTINCT = False
SUPPORTS_TO_NUMBER = False
PROPERTIES_LOCATION = {
**generator.Generator.PROPERTIES_LOCATION,
@ -323,6 +328,7 @@ class Presto(Dialect):
exp.ArrayConcat: rename_func("CONCAT"),
exp.ArrayContains: rename_func("CONTAINS"),
exp.ArraySize: rename_func("CARDINALITY"),
exp.ArrayToString: rename_func("ARRAY_JOIN"),
exp.ArrayUniqueAgg: rename_func("SET_AGG"),
exp.AtTimeZone: rename_func("AT_TIMEZONE"),
exp.BitwiseAnd: lambda self, e: self.func("BITWISE_AND", e.this, e.expression),
@ -339,19 +345,19 @@ class Presto(Dialect):
exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
exp.DateAdd: lambda self, e: self.func(
"DATE_ADD",
exp.Literal.string(e.text("unit") or "DAY"),
unit_to_str(e),
_to_int(e.expression),
e.this,
),
exp.DateDiff: lambda self, e: self.func(
"DATE_DIFF", exp.Literal.string(e.text("unit") or "DAY"), e.expression, e.this
"DATE_DIFF", unit_to_str(e), e.expression, e.this
),
exp.DateStrToDate: datestrtodate_sql,
exp.DateToDi: lambda self,
e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Presto.DATEINT_FORMAT}) AS INT)",
exp.DateSub: lambda self, e: self.func(
"DATE_ADD",
exp.Literal.string(e.text("unit") or "DAY"),
unit_to_str(e),
_to_int(e.expression * -1),
e.this,
),
@ -397,13 +403,10 @@ class Presto(Dialect):
]
),
exp.SortArray: _no_sort_array,
exp.StrPosition: rename_func("STRPOS"),
exp.StrPosition: lambda self, e: str_position_sql(self, e, generate_instance=True),
exp.StrToDate: lambda self, e: f"CAST({_str_to_time_sql(self, e)} AS DATE)",
exp.StrToMap: rename_func("SPLIT_TO_MAP"),
exp.StrToTime: _str_to_time_sql,
exp.StrToUnix: lambda self, e: self.func(
"TO_UNIXTIME", self.func("DATE_PARSE", e.this, self.format_time(e))
),
exp.StructExtract: struct_extract_sql,
exp.Table: transforms.preprocess([_unnest_sequence]),
exp.Timestamp: no_timestamp_sql,
@ -436,6 +439,22 @@ class Presto(Dialect):
exp.Xor: bool_xor_sql,
}
def strtounix_sql(self, expression: exp.StrToUnix) -> str:
# Since `TO_UNIXTIME` requires a `TIMESTAMP`, we need to parse the argument into one.
# To do this, we first try to `DATE_PARSE` it, but since this can fail when there's a
# timezone involved, we wrap it in a `TRY` call and use `PARSE_DATETIME` as a fallback,
# which seems to be using the same time mapping as Hive, as per:
# https://joda-time.sourceforge.net/apidocs/org/joda/time/format/DateTimeFormat.html
value_as_text = exp.cast(expression.this, "text")
parse_without_tz = self.func("DATE_PARSE", value_as_text, self.format_time(expression))
parse_with_tz = self.func(
"PARSE_DATETIME",
value_as_text,
self.format_time(expression, Hive.INVERSE_TIME_MAPPING, Hive.INVERSE_TIME_TRIE),
)
coalesced = self.func("COALESCE", self.func("TRY", parse_without_tz), parse_with_tz)
return self.func("TO_UNIXTIME", coalesced)
def bracket_sql(self, expression: exp.Bracket) -> str:
if expression.args.get("safe"):
return self.func(
@ -481,8 +500,7 @@ class Presto(Dialect):
return f"CAST(ROW({', '.join(values)}) AS ROW({', '.join(schema)}))"
def interval_sql(self, expression: exp.Interval) -> str:
unit = self.sql(expression, "unit")
if expression.this and unit.startswith("WEEK"):
if expression.this and expression.text("unit").upper().startswith("WEEK"):
return f"({expression.this.name} * INTERVAL '7' DAY)"
return super().interval_sql(expression)