diff options
Diffstat (limited to 'tests/fixtures/optimizer/eliminate_subqueries.sql')
| -rw-r--r-- | tests/fixtures/optimizer/eliminate_subqueries.sql | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/tests/fixtures/optimizer/eliminate_subqueries.sql b/tests/fixtures/optimizer/eliminate_subqueries.sql index f395c0a..c566657 100644 --- a/tests/fixtures/optimizer/eliminate_subqueries.sql +++ b/tests/fixtures/optimizer/eliminate_subqueries.sql @@ -77,3 +77,15 @@ WITH x_2 AS (SELECT * FROM x AS x JOIN y AS y ON x.id = y.id) SELECT x.id FROM x -- Existing duplicate CTE WITH y AS (SELECT a FROM x) SELECT a FROM (SELECT a FROM x) AS y JOIN y AS z; WITH y AS (SELECT a FROM x) SELECT a FROM y AS y JOIN y AS z; + +-- Nested CTE +WITH cte1 AS (SELECT a FROM x) SELECT a FROM (WITH cte2 AS (SELECT a FROM cte1) SELECT a FROM cte2); +WITH cte1 AS (SELECT a FROM x), cte2 AS (SELECT a FROM cte1), cte AS (SELECT a FROM cte2 AS cte2) SELECT a FROM cte AS cte; + +-- Nested CTE inside CTE +WITH cte1 AS (WITH cte2 AS (SELECT a FROM x) SELECT t.a FROM cte2 AS t) SELECT a FROM cte1; +WITH cte2 AS (SELECT a FROM x), cte1 AS (SELECT t.a FROM cte2 AS t) SELECT a FROM cte1; + +-- Duplicate CTE nested in CTE +WITH cte1 AS (SELECT a FROM x), cte2 AS (WITH cte3 AS (SELECT a FROM x) SELECT a FROM cte3) SELECT a FROM cte2; +WITH cte1 AS (SELECT a FROM x), cte2 AS (SELECT a FROM cte1 AS cte3) SELECT a FROM cte2; |