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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2010-03-28 22:59:34 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2010-03-28 22:59:34 +0000 |
| commit | b78f6264eba33e2966447572b8261e353df01e59 (patch) | |
| tree | 1b5cfa84c32c6683851d335cfa9cd7dab54ecee5 /src/backend/optimizer/plan/createplan.c | |
| parent | a760893dbda9934e287789d54bbd3c4ca3914ce0 (diff) | |
| download | postgresql-b78f6264eba33e2966447572b8261e353df01e59.tar.gz postgresql-b78f6264eba33e2966447572b8261e353df01e59.zip | |
Rework join-removal logic as per recent discussion. In particular this
fixes things so that it works for cases where nested removals are possible.
The overhead of the optimization should be significantly less, as well.
Diffstat (limited to 'src/backend/optimizer/plan/createplan.c')
| -rw-r--r-- | src/backend/optimizer/plan/createplan.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/src/backend/optimizer/plan/createplan.c b/src/backend/optimizer/plan/createplan.c index db47054ecdc..a87c2b80fb2 100644 --- a/src/backend/optimizer/plan/createplan.c +++ b/src/backend/optimizer/plan/createplan.c @@ -10,7 +10,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/plan/createplan.c,v 1.273 2010/02/26 02:00:45 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/plan/createplan.c,v 1.274 2010/03/28 22:59:32 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -164,11 +164,6 @@ create_plan(PlannerInfo *root, Path *best_path) case T_WorkTableScan: plan = create_scan_plan(root, best_path); break; - case T_Join: - /* this is only used for no-op joins */ - Assert(IsA(best_path, NoOpPath)); - plan = create_plan(root, ((NoOpPath *) best_path)->subpath); - break; case T_HashJoin: case T_MergeJoin: case T_NestLoop: |