Merging upstream version 9.0.1.

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

tests/test_expressions.py

@@ -123,13 +123,16 @@ class TestExpressions(unittest.TestCase):
         self.assertEqual(exp.table_name(parse_one("a.b.c", into=exp.Table)), "a.b.c")
         self.assertEqual(exp.table_name("a.b.c"), "a.b.c")
 
+    def test_table(self):
+        self.assertEqual(exp.table_("a", alias="b"), parse_one("select * from a b").find(exp.Table))
+
     def test_replace_tables(self):
         self.assertEqual(
             exp.replace_tables(
-                parse_one("select * from a join b join c.a join d.a join e.a"),
+                parse_one("select * from a AS a join b join c.a join d.a join e.a"),
                 {"a": "a1", "b": "b.a", "c.a": "c.a2", "d.a": "d2"},
             ).sql(),
-            'SELECT * FROM "a1" JOIN "b"."a" JOIN "c"."a2" JOIN "d2" JOIN e.a',
+            "SELECT * FROM a1 AS a JOIN b.a JOIN c.a2 JOIN d2 JOIN e.a",
         )
 
     def test_named_selects(self):
@@ -495,11 +498,15 @@ class TestExpressions(unittest.TestCase):
                 self.assertEqual(exp.convert(value).sql(), expected)
 
     def test_annotation_alias(self):
-        expression = parse_one("SELECT a, b AS B, c #comment, d AS D #another_comment FROM foo")
+        sql = "SELECT a, b AS B, c # comment, d AS D # another_comment FROM foo"
+        expression = parse_one(sql)
         self.assertEqual(
             [e.alias_or_name for e in expression.expressions],
             ["a", "B", "c", "D"],
         )
+        self.assertEqual(expression.sql(), sql)
+        self.assertEqual(expression.expressions[2].name, "comment")
+        self.assertEqual(expression.sql(annotations=False), "SELECT a, b AS B, c, d AS D")
 
     def test_to_table(self):
         table_only = exp.to_table("table_name")
@@ -514,6 +521,18 @@ class TestExpressions(unittest.TestCase):
         self.assertEqual(catalog_db_and_table.name, "table_name")
         self.assertEqual(catalog_db_and_table.args.get("db"), exp.to_identifier("db"))
         self.assertEqual(catalog_db_and_table.args.get("catalog"), exp.to_identifier("catalog"))
+        with self.assertRaises(ValueError):
+            exp.to_table(1)
+
+    def test_to_column(self):
+        column_only = exp.to_column("column_name")
+        self.assertEqual(column_only.name, "column_name")
+        self.assertIsNone(column_only.args.get("table"))
+        table_and_column = exp.to_column("table_name.column_name")
+        self.assertEqual(table_and_column.name, "column_name")
+        self.assertEqual(table_and_column.args.get("table"), exp.to_identifier("table_name"))
+        with self.assertRaises(ValueError):
+            exp.to_column(1)
 
     def test_union(self):
         expression = parse_one("SELECT cola, colb UNION SELECT colx, coly")