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Do not attempt the LEFT JOIN strength reduction optimization on a FULL JOIN.

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FossilOrigin-Name: 7ef3e99a73d70405a185d5d31f2d97d3bd99568fd6f10941e75d6c0baa27dc4f
This commit is contained in:
drh
2022-04-11 14:43:11 +00:00
parent c583719b65
commit ff02ac7f07
4 changed files with 16 additions and 9 deletions
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2
src/select.c
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@@ -6509,7 +6509,7 @@ int sqlite3Select(
/* Convert LEFT JOIN into JOIN if there are terms of the right table
** of the LEFT JOIN used in the WHERE clause.
*/
if( (pItem->fg.jointype & JT_LEFT)!=0
if( (pItem->fg.jointype & (JT_LEFT|JT_RIGHT))==JT_LEFT
&& sqlite3ExprImpliesNonNullRow(p->pWhere, pItem->iCursor)
&& OptimizationEnabled(db, SQLITE_SimplifyJoin)
){