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Tweak a couple of planner APIs to save recalculating join relids.
Discussion: https://postgr.es/m/f8128b11-c5bf-3539-48cd-234178b2314d@proxel.se
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@ -4023,6 +4023,7 @@ get_restriction_qual_cost(PlannerInfo *root, RelOptInfo *baserel,
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* them to all the join cost estimation functions.
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*
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* Input parameters:
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* joinrel: join relation under consideration
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* outerrel: outer relation under consideration
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* innerrel: inner relation under consideration
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* jointype: if not JOIN_SEMI or JOIN_ANTI, we assume it's inner_unique
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@ -4033,6 +4034,7 @@ get_restriction_qual_cost(PlannerInfo *root, RelOptInfo *baserel,
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*/
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void
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compute_semi_anti_join_factors(PlannerInfo *root,
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RelOptInfo *joinrel,
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RelOptInfo *outerrel,
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RelOptInfo *innerrel,
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JoinType jointype,
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@ -4056,14 +4058,12 @@ compute_semi_anti_join_factors(PlannerInfo *root,
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*/
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if (IS_OUTER_JOIN(jointype))
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{
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Relids joinrelids = bms_union(outerrel->relids, innerrel->relids);
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joinquals = NIL;
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foreach(l, restrictlist)
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{
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RestrictInfo *rinfo = lfirst_node(RestrictInfo, l);
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if (!RINFO_IS_PUSHED_DOWN(rinfo, joinrelids))
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if (!RINFO_IS_PUSHED_DOWN(rinfo, joinrel->relids))
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joinquals = lappend(joinquals, rinfo);
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}
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}
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@ -171,6 +171,7 @@ add_paths_to_joinrel(PlannerInfo *root,
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break;
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case JOIN_UNIQUE_OUTER:
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extra.inner_unique = innerrel_is_unique(root,
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joinrel->relids,
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outerrel->relids,
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innerrel,
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JOIN_INNER,
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@ -179,6 +180,7 @@ add_paths_to_joinrel(PlannerInfo *root,
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break;
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default:
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extra.inner_unique = innerrel_is_unique(root,
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joinrel->relids,
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outerrel->relids,
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innerrel,
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jointype,
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@ -207,7 +209,7 @@ add_paths_to_joinrel(PlannerInfo *root,
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* for cost estimation. These will be the same for all paths.
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*/
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if (jointype == JOIN_SEMI || jointype == JOIN_ANTI || extra.inner_unique)
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compute_semi_anti_join_factors(root, outerrel, innerrel,
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compute_semi_anti_join_factors(root, joinrel, outerrel, innerrel,
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jointype, sjinfo, restrictlist,
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&extra.semifactors);
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