diff options
Diffstat (limited to 'src/backend/optimizer/path/equivclass.c')
| -rw-r--r-- | src/backend/optimizer/path/equivclass.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/backend/optimizer/path/equivclass.c b/src/backend/optimizer/path/equivclass.c index 7dffe18c973..fd38e8bd7a9 100644 --- a/src/backend/optimizer/path/equivclass.c +++ b/src/backend/optimizer/path/equivclass.c @@ -889,8 +889,8 @@ generate_join_implied_equalities_normal(PlannerInfo *root, * combination for which an opfamily member operator exists. If we have * choices, we prefer simple Var members (possibly with RelabelType) since * these are (a) cheapest to compute at runtime and (b) most likely to - * have useful statistics. Also, if enable_hashjoin is on, we prefer - * operators that are also hashjoinable. + * have useful statistics. Also, prefer operators that are also + * hashjoinable. */ if (outer_members && inner_members) { @@ -925,8 +925,7 @@ generate_join_implied_equalities_normal(PlannerInfo *root, (IsA(inner_em->em_expr, RelabelType) && IsA(((RelabelType *) inner_em->em_expr)->arg, Var))) score++; - if (!enable_hashjoin || - op_hashjoinable(eq_op, + if (op_hashjoinable(eq_op, exprType((Node *) outer_em->em_expr))) score++; if (score > best_score) |