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-rw-r--r--sqlparse/engine/grouping.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/sqlparse/engine/grouping.py b/sqlparse/engine/grouping.py
index 3536a8b..47e77ac 100644
--- a/sqlparse/engine/grouping.py
+++ b/sqlparse/engine/grouping.py
@@ -125,7 +125,7 @@ def group_comparison(tlist):
return (token.ttype in (T.String.Symbol, T.Name, T.Number,
T.Number.Integer, T.Literal,
T.Literal.Number.Integer)
- or isinstance(token, (sql.Identifier,))
+ or isinstance(token, (sql.Identifier, sql.Parenthesis))
or (token.ttype is T.Keyword
and token.value.upper() in ['NULL', ]))
_group_left_right(tlist, T.Operator.Comparison, None, sql.Comparison,