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| author | Robert Haas <rhaas@postgresql.org> | 2015-06-26 09:40:47 -0400 |
|---|---|---|
| committer | Robert Haas <rhaas@postgresql.org> | 2015-06-26 09:40:47 -0400 |
| commit | 5ca611841bcd37c7ee8448c46c8398ef8d8edcc4 (patch) | |
| tree | 492d1f96b9f0b3a25e321f6d58cba98b0a95bfd2 /src/backend/optimizer/plan/createplan.c | |
| parent | 4b8e24b9ad308c30dbe2184e06848e638e018114 (diff) | |
| download | postgresql-5ca611841bcd37c7ee8448c46c8398ef8d8edcc4.tar.gz postgresql-5ca611841bcd37c7ee8448c46c8398ef8d8edcc4.zip | |
Improve handling of CustomPath/CustomPlan(State) children.
Allow CustomPath to have a list of paths, CustomPlan a list of plans,
and CustomPlanState a list of planstates known to the core system, so
that custom path/plan providers can more reasonably use this
infrastructure for nodes with multiple children.
KaiGai Kohei, per a design suggestion from Tom Lane, with some
further kibitzing by me.
Diffstat (limited to 'src/backend/optimizer/plan/createplan.c')
| -rw-r--r-- | src/backend/optimizer/plan/createplan.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/backend/optimizer/plan/createplan.c b/src/backend/optimizer/plan/createplan.c index a3482def643..dc2dcbf93f7 100644 --- a/src/backend/optimizer/plan/createplan.c +++ b/src/backend/optimizer/plan/createplan.c @@ -2157,6 +2157,16 @@ create_customscan_plan(PlannerInfo *root, CustomPath *best_path, { CustomScan *cplan; RelOptInfo *rel = best_path->path.parent; + List *custom_plans = NIL; + ListCell *lc; + + /* Recursively transform child paths. */ + foreach (lc, best_path->custom_paths) + { + Plan *plan = create_plan_recurse(root, (Path *) lfirst(lc)); + + custom_plans = lappend(custom_plans, plan); + } /* * Sort clauses into the best execution order, although custom-scan @@ -2172,7 +2182,8 @@ create_customscan_plan(PlannerInfo *root, CustomPath *best_path, rel, best_path, tlist, - scan_clauses); + scan_clauses, + custom_plans); Assert(IsA(cplan, CustomScan)); /* |