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Merging upstream version 20.3.0.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-13 21:17:51 +01:00
parent 2945bcc4f7
commit 4d9376ba93
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
132 changed files with 55125 additions and 51576 deletions
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10
tests/fixtures/optimizer/eliminate_subqueries.sql vendored
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@ -42,17 +42,9 @@ WITH y AS (SELECT a FROM x), z AS (SELECT a FROM y AS y) SELECT a FROM z AS z CR
WITH y AS (SELECT a FROM (SELECT a FROM x) AS y) SELECT a FROM y;
WITH y_2 AS (SELECT a FROM x), y AS (SELECT a FROM y_2 AS y) SELECT a FROM y;
-- Union
SELECT 1 AS x, 2 AS y UNION ALL SELECT 1 AS x, 2 AS y;
WITH cte AS (SELECT 1 AS x, 2 AS y) SELECT cte.x AS x, cte.y AS y FROM cte AS cte UNION ALL SELECT cte.x AS x, cte.y AS y FROM cte AS cte;
-- Union of selects with derived tables
(SELECT a FROM (SELECT b FROM x)) UNION (SELECT a FROM (SELECT b FROM y));
WITH cte AS (SELECT b FROM x), cte_2 AS (SELECT a FROM cte AS cte), cte_3 AS (SELECT b FROM y), cte_4 AS (SELECT a FROM cte_3 AS cte_3) (SELECT cte_2.a AS a FROM cte_2 AS cte_2) UNION (SELECT cte_4.a AS a FROM cte_4 AS cte_4);
-- Three unions
SELECT a FROM x UNION ALL SELECT a FROM y UNION ALL SELECT a FROM z;
WITH cte AS (SELECT a FROM x), cte_2 AS (SELECT a FROM y), cte_3 AS (SELECT a FROM z), cte_4 AS (SELECT cte_2.a AS a FROM cte_2 AS cte_2 UNION ALL SELECT cte_3.a AS a FROM cte_3 AS cte_3) SELECT cte.a AS a FROM cte AS cte UNION ALL SELECT cte_4.a AS a FROM cte_4 AS cte_4;
WITH cte AS (SELECT b FROM x), cte_2 AS (SELECT b FROM y) (SELECT a FROM cte AS cte) UNION (SELECT a FROM cte_2 AS cte_2);
-- Subquery
SELECT a FROM x WHERE b = (SELECT y.c FROM y);