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Merging upstream version 6.2.8.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-13 14:43:32 +01:00
parent 87ba722f7f
commit a62bbc24c3
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
22 changed files with 361 additions and 98 deletions
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8
tests/fixtures/optimizer/merge_subqueries.sql vendored
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@ -97,3 +97,11 @@ WITH x AS (SELECT x.a AS a, x.b AS b FROM x AS x) SELECT x.a AS a, y.b AS b FROM
-- Nested CTE
SELECT * FROM (WITH x AS (SELECT a, b FROM x) SELECT a, b FROM x);
SELECT x.a AS a, x.b AS b FROM x AS x;
-- Inner select is an expression
SELECT a FROM (SELECT a FROM (SELECT COALESCE(a) AS a FROM x LEFT JOIN y ON x.a = y.b) AS x) AS x;
SELECT COALESCE(x.a) AS a FROM x AS x LEFT JOIN y AS y ON x.a = y.b;
-- CTE select is an expression
WITH x AS (SELECT COALESCE(a) AS a FROM x LEFT JOIN y ON x.a = y.b) SELECT a FROM (SELECT a FROM x AS x) AS x;
SELECT COALESCE(x.a) AS a FROM x AS x LEFT JOIN y AS y ON x.a = y.b;