diff options
Diffstat (limited to 'src/backend/optimizer/path/joinrels.c')
| -rw-r--r-- | src/backend/optimizer/path/joinrels.c | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/src/backend/optimizer/path/joinrels.c b/src/backend/optimizer/path/joinrels.c index 0d0068360c1..05516689765 100644 --- a/src/backend/optimizer/path/joinrels.c +++ b/src/backend/optimizer/path/joinrels.c @@ -32,6 +32,9 @@ static bool is_dummy_rel(RelOptInfo *rel); static void mark_dummy_rel(RelOptInfo *rel); static bool restriction_is_constant_false(List *restrictlist, bool only_pushed_down); +static void populate_joinrel_with_paths(PlannerInfo *root, RelOptInfo *rel1, + RelOptInfo *rel2, RelOptInfo *joinrel, + SpecialJoinInfo *sjinfo, List *restrictlist); /* @@ -724,6 +727,27 @@ make_join_rel(PlannerInfo *root, RelOptInfo *rel1, RelOptInfo *rel2) return joinrel; } + /* Add paths to the join relation. */ + populate_joinrel_with_paths(root, rel1, rel2, joinrel, sjinfo, + restrictlist); + + bms_free(joinrelids); + + return joinrel; +} + +/* + * populate_joinrel_with_paths + * Add paths to the given joinrel for given pair of joining relations. The + * SpecialJoinInfo provides details about the join and the restrictlist + * contains the join clauses and the other clauses applicable for given pair + * of the joining relations. + */ +static void +populate_joinrel_with_paths(PlannerInfo *root, RelOptInfo *rel1, + RelOptInfo *rel2, RelOptInfo *joinrel, + SpecialJoinInfo *sjinfo, List *restrictlist) +{ /* * Consider paths using each rel as both outer and inner. Depending on * the join type, a provably empty outer or inner rel might mean the join @@ -868,10 +892,6 @@ make_join_rel(PlannerInfo *root, RelOptInfo *rel1, RelOptInfo *rel2) elog(ERROR, "unrecognized join type: %d", (int) sjinfo->jointype); break; } - - bms_free(joinrelids); - - return joinrel; } |