# 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.

# Regression test for https://github.com/MaterializeInc/database-issues/issues/7318

# This query involves a 1-input join. `JoinImplementation` or other join code shouldn't choke on this.

statement ok
CREATE TABLE t1 (f1 DOUBLE PRECISION, f2 DOUBLE PRECISION NOT NULL);

statement ok
CREATE INDEX t1i1 ON t1(f1);

statement ok
CREATE INDEX t1i2 ON t1(f2, f1);

# one NULL row in t1

statement ok
INSERT INTO t1 VALUES (NULL, 0);

# values 1 and 2 have 2 rows each in t1

statement ok
INSERT INTO t1 VALUES (1, 1), (1, 1), (2, 2), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6), (7, 7), (8, 8);

# value 9 not present in either table

statement ok
CREATE TABLE t2 (f1 DOUBLE PRECISION, f2 DOUBLE PRECISION NOT NULL);

statement ok
CREATE INDEX t2i1 ON t2(f1);

statement ok
CREATE INDEX i2i2 ON t2(f2, f1);

# two NULL rows in t2

statement ok
INSERT INTO t2 VALUES (NULL, 0);

statement ok
INSERT INTO t2 VALUES (NULL, 0);

statement ok
INSERT INTO t2 VALUES (1, 1);

# value 2 has 2 rows in t2
statement ok
INSERT INTO t2 VALUES (2, 2);

statement ok
INSERT INTO t2 VALUES (2, 2);

# value 3 has no rows in t2
statement ok
INSERT INTO t2 VALUES (4, 4), (5, 5), (6, 6), (7, 7), (8, 8);

# value 9 not present in either table

statement ok
CREATE TABLE t3 (f1 DOUBLE PRECISION, f2 DOUBLE PRECISION NOT NULL);

statement ok
CREATE INDEX t3i1 ON t2(f1);

statement ok
CREATE INDEX i3i2 ON t2(f2, f1);


statement ok
CREATE MATERIALIZED VIEW pk1 AS SELECT DISTINCT ON (f1) f1 , f2 FROM t1 WHERE f1 IS NOT NULL AND f2 IS NOT NULL;

statement ok
CREATE MATERIALIZED VIEW pk2 AS SELECT DISTINCT ON (f1) f1 , f2 FROM t2 WHERE f1 IS NOT NULL AND f2 IS NOT NULL;

statement ok
CREATE MATERIALIZED VIEW pk3 AS SELECT DISTINCT ON (f1) f1 , f2 FROM t3 WHERE f1 IS NOT NULL AND f2 IS NOT NULL;


query RR
SELECT
      left_object.f1 AS f1,
      left_object.f1 AS f2
    FROM
      (
        SELECT
          DISTINCT f2 AS f1,
          f2 AS f2
        FROM
          t1
      ) AS left_object
      LEFT JOIN pk1 AS before ON (left_object.f1 = before.f1)
       JOIN LATERAL (
        SELECT
          f2 AS f1,
          f1 AS f2
        FROM
          t2
        LIMIT
          left_object.f1
      ) AS right_object ON (left_object.f2 = right_object.f1) ;
----