diff options
Diffstat (limited to 'tests/fixtures/optimizer/merge_subqueries.sql')
| -rw-r--r-- | tests/fixtures/optimizer/merge_subqueries.sql | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tests/fixtures/optimizer/merge_subqueries.sql b/tests/fixtures/optimizer/merge_subqueries.sql index 35aed3b..e13d3b3 100644 --- a/tests/fixtures/optimizer/merge_subqueries.sql +++ b/tests/fixtures/optimizer/merge_subqueries.sql @@ -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; |