Merging upstream version 12.2.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/tests/fixtures/optimizer/qualify_tables.sql b/tests/fixtures/optimizer/qualify_tables.sql
index 2cea85d..0ad155a 100644
--- a/tests/fixtures/optimizer/qualify_tables.sql
+++ b/tests/fixtures/optimizer/qualify_tables.sql
@@ -15,3 +15,26 @@ WITH a AS (SELECT 1 FROM c.db.z AS z) SELECT 1 FROM a;
 
 SELECT (SELECT y.c FROM y AS y) FROM x;
 SELECT (SELECT y.c FROM c.db.y AS y) FROM c.db.x AS x;
+
+-------------------------
+-- Expand join constructs
+-------------------------
+
+-- This is valid in Trino, so we treat the (tbl AS tbl) as a "join construct" per postgres' terminology.
+SELECT * FROM (tbl AS tbl) AS _q_0;
+SELECT * FROM (SELECT * FROM c.db.tbl AS tbl) AS _q_0;
+
+SELECT * FROM ((tbl AS tbl)) AS _q_0;
+SELECT * FROM (SELECT * FROM c.db.tbl AS tbl) AS _q_0;
+
+SELECT * FROM (((tbl AS tbl))) AS _q_0;
+SELECT * FROM (SELECT * FROM c.db.tbl AS tbl) AS _q_0;
+
+SELECT * FROM (tbl1 AS tbl1 JOIN tbl2 AS tbl2 ON id1 = id2 JOIN tbl3 AS tbl3 ON id1 = id3) AS _q_0;
+SELECT * FROM (SELECT * FROM c.db.tbl1 AS tbl1 JOIN c.db.tbl2 AS tbl2 ON id1 = id2 JOIN c.db.tbl3 AS tbl3 ON id1 = id3) AS _q_0;
+
+SELECT * FROM ((tbl1 AS tbl1 JOIN tbl2 AS tbl2 ON id1 = id2 JOIN tbl3 AS tbl3 ON id1 = id3)) AS _q_0;
+SELECT * FROM (SELECT * FROM c.db.tbl1 AS tbl1 JOIN c.db.tbl2 AS tbl2 ON id1 = id2 JOIN c.db.tbl3 AS tbl3 ON id1 = id3) AS _q_0;
+
+SELECT * FROM (tbl1 AS tbl1 JOIN (tbl2 AS tbl2 JOIN tbl3 AS tbl3 ON id2 = id3) AS _q_0 ON id1 = id3) AS _q_1;
+SELECT * FROM (SELECT * FROM c.db.tbl1 AS tbl1 JOIN (SELECT * FROM c.db.tbl2 AS tbl2 JOIN c.db.tbl3 AS tbl3 ON id2 = id3) AS _q_0 ON id1 = id3) AS _q_1;