diff options
Diffstat (limited to 'src/backend/optimizer/plan/initsplan.c')
| -rw-r--r-- | src/backend/optimizer/plan/initsplan.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c index a779bc3fa0e..5328f19afea 100644 --- a/src/backend/optimizer/plan/initsplan.c +++ b/src/backend/optimizer/plan/initsplan.c @@ -680,9 +680,9 @@ make_outerjoininfo(PlannerInfo *root, * For a lower OJ in our RHS, if our join condition does not use the * lower join's RHS and the lower OJ's join condition is strict, we * can interchange the ordering of the two OJs; otherwise we must add - * lower OJ's full syntactic relset to min_righthand. Here, we must - * preserve ordering anyway if either the current join is a semijoin, - * or the lower OJ is either a semijoin or an antijoin. + * the lower OJ's full syntactic relset to min_righthand. Also, we + * must preserve ordering anyway if either the current join or the + * lower OJ is either a semijoin or an antijoin. * * Here, we have to consider that "our join condition" includes any * clauses that syntactically appeared above the lower OJ and below @@ -699,6 +699,7 @@ make_outerjoininfo(PlannerInfo *root, { if (bms_overlap(clause_relids, otherinfo->syn_righthand) || jointype == JOIN_SEMI || + jointype == JOIN_ANTI || otherinfo->jointype == JOIN_SEMI || otherinfo->jointype == JOIN_ANTI || !otherinfo->lhs_strict || otherinfo->delay_upper_joins) |