# Copyright Materialize, Inc. and contributors. All rights reserved.
#
# Use of this software is governed by the Business Source License
# included in the LICENSE file at the root of this repository.
#
# As of the Change Date specified in that file, in accordance with
# the Business Source License, use of this software will be governed
# by the Apache License, Version 2.0.

# Tests whether correct results are returned in degenerate edge cases
# where the expected result is empty, null, or a constant.

statement ok
CREATE TABLE t1 (f1 INTEGER)

statement ok
INSERT INTO t1 VALUES (NULL)

query I
SELECT * FROM t1 WHERE NOT (f1 = f1)
----