[fix] Adding TypedLiteral to comparison

2 files changed, 13 insertions, 2 deletions

diff --git a/sqlparse/engine/grouping.py b/sqlparse/engine/grouping.py
index daaffb0..e7a4211 100644
--- a/sqlparse/engine/grouping.py
+++ b/sqlparse/engine/grouping.py
@@ -192,7 +192,7 @@ def group_assignment(tlist):
 
 def group_comparison(tlist):
     sqlcls = (sql.Parenthesis, sql.Function, sql.Identifier,
-              sql.Operation)
+              sql.Operation, sql.TypedLiteral)
     ttypes = T_NUMERICAL + T_STRING + T_NAME
 
     def match(token):
diff --git a/tests/test_grouping.py b/tests/test_grouping.py
index a147063..87dcf11 100644
--- a/tests/test_grouping.py
+++ b/tests/test_grouping.py
@@ -36,7 +36,7 @@ def test_grouping_assignment(s):
 @pytest.mark.parametrize('s', ["x > DATE '2020-01-01'", "x > TIMESTAMP '2020-01-01 00:00:00'"])
 def test_grouping_typed_literal(s):
     parsed = sqlparse.parse(s)[0]
-    assert isinstance(parsed[4], sql.TypedLiteral)
+    assert isinstance(parsed[0][4], sql.TypedLiteral)
 
 
 @pytest.mark.parametrize('s, a, b', [
@@ -550,6 +550,17 @@ def test_comparison_with_functions():
     assert p.tokens[0].right.value == 'bar.baz'
 
 
+def test_comparison_with_typed_literal():
+    p = sqlparse.parse("foo = DATE 'bar.baz'")[0]
+    assert len(p.tokens) == 1
+    comp = p.tokens[0]
+    assert isinstance(comp, sql.Comparison)
+    assert len(comp.tokens) == 5
+    assert comp.left.value == 'foo'
+    assert isinstance(comp.right, sql.TypedLiteral)
+    assert comp.right.value == "DATE 'bar.baz'"
+
+
 @pytest.mark.parametrize('start', ['FOR', 'FOREACH'])
 def test_forloops(start):
     p = sqlparse.parse('{0} foo in bar LOOP foobar END LOOP'.format(start))[0]