Adding upstream version 15.0.0.

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

sqlglot/dialects/sqlite.py

@@ -7,6 +7,7 @@ from sqlglot.dialects.dialect import (
     arrow_json_extract_sql,
     count_if_to_sum,
     no_ilike_sql,
+    no_pivot_sql,
     no_tablesample_sql,
     no_trycast_sql,
     rename_func,
@@ -14,7 +15,7 @@ from sqlglot.dialects.dialect import (
 from sqlglot.tokens import TokenType
 
 
-def _date_add_sql(self, expression):
+def _date_add_sql(self: generator.Generator, expression: exp.DateAdd) -> str:
     modifier = expression.expression
     modifier = modifier.name if modifier.is_string else self.sql(modifier)
     unit = expression.args.get("unit")
@@ -67,7 +68,7 @@ class SQLite(Dialect):
 
     class Parser(parser.Parser):
         FUNCTIONS = {
-            **parser.Parser.FUNCTIONS,  # type: ignore
+            **parser.Parser.FUNCTIONS,
             "EDITDIST3": exp.Levenshtein.from_arg_list,
         }
 
@@ -76,7 +77,7 @@ class SQLite(Dialect):
         TABLE_HINTS = False
 
         TYPE_MAPPING = {
-            **generator.Generator.TYPE_MAPPING,  # type: ignore
+            **generator.Generator.TYPE_MAPPING,
             exp.DataType.Type.BOOLEAN: "INTEGER",
             exp.DataType.Type.TINYINT: "INTEGER",
             exp.DataType.Type.SMALLINT: "INTEGER",
@@ -98,7 +99,7 @@ class SQLite(Dialect):
         }
 
         TRANSFORMS = {
-            **generator.Generator.TRANSFORMS,  # type: ignore
+            **generator.Generator.TRANSFORMS,
             exp.CountIf: count_if_to_sum,
             exp.Create: transforms.preprocess([_transform_create]),
             exp.CurrentDate: lambda *_: "CURRENT_DATE",
@@ -114,6 +115,7 @@ class SQLite(Dialect):
             exp.Levenshtein: rename_func("EDITDIST3"),
             exp.LogicalOr: rename_func("MAX"),
             exp.LogicalAnd: rename_func("MIN"),
+            exp.Pivot: no_pivot_sql,
             exp.Select: transforms.preprocess(
                 [transforms.eliminate_distinct_on, transforms.eliminate_qualify]
             ),
@@ -163,12 +165,15 @@ class SQLite(Dialect):
             return f"CAST({sql} AS INTEGER)"
 
         # https://www.sqlite.org/lang_aggfunc.html#group_concat
-        def groupconcat_sql(self, expression):
+        def groupconcat_sql(self, expression: exp.GroupConcat) -> str:
             this = expression.this
             distinct = expression.find(exp.Distinct)
+
             if distinct:
                 this = distinct.expressions[0]
-                distinct = "DISTINCT "
+                distinct_sql = "DISTINCT "
+            else:
+                distinct_sql = ""
 
             if isinstance(expression.this, exp.Order):
                 self.unsupported("SQLite GROUP_CONCAT doesn't support ORDER BY.")
@@ -176,7 +181,7 @@ class SQLite(Dialect):
                     this = expression.this.this
 
             separator = expression.args.get("separator")
-            return f"GROUP_CONCAT({distinct or ''}{self.format_args(this, separator)})"
+            return f"GROUP_CONCAT({distinct_sql}{self.format_args(this, separator)})"
 
         def least_sql(self, expression: exp.Least) -> str:
             if len(expression.expressions) > 1: