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drh
2017-09-30 11:47:06 +00:00
parent 24ae373ab1
commit 67cc51a491
3 changed files with 12 additions and 8 deletions
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src/select.c
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@@ -3831,7 +3831,11 @@ static int flattenSubquery(
**
** (1) (** This restriction was removed on 2017-09-29. We used to
** disallow this optimization for aggregate subqueries, but now
** it is allowed by putting the extra terms on the HAVING clause **)
** it is allowed by putting the extra terms on the HAVING clause.
** The added HAVING clause is pointless if the subquery lacks
** a GROUP BY clause. But such a HAVING clause is also harmless
** so there does not appear to be any reason to add extra logic
** to suppress it. **)
**
** (2) The inner query is the recursive part of a common table expression.
**