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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2016-03-08 16:50:32 -0500 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2016-03-08 16:50:44 -0500 |
| commit | 61fd218930db53079e5f001dd4ea2fd53afd1b95 (patch) | |
| tree | b781a4096892e847c599cbddd9370f21e6f7ea8b /src | |
| parent | e66197fa2efa8ae0cab1eed6b2257ab4e2134b1e (diff) | |
| download | postgresql-61fd218930db53079e5f001dd4ea2fd53afd1b95.tar.gz postgresql-61fd218930db53079e5f001dd4ea2fd53afd1b95.zip | |
Fix minor thinko in pathification code.
I passed the wrong "root" struct to create_pathtarget in build_minmax_path.
Since the subroot is a clone of the outer root, this would not cause any
serious problems, but it would waste some cycles because
set_pathtarget_cost_width would not have access to Var width estimates
set up while running query_planner on the subroot.
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/optimizer/plan/planagg.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/optimizer/plan/planagg.c b/src/backend/optimizer/plan/planagg.c index 9d6c181e365..cefec7bdf10 100644 --- a/src/backend/optimizer/plan/planagg.c +++ b/src/backend/optimizer/plan/planagg.c @@ -465,7 +465,7 @@ build_minmax_path(PlannerInfo *root, MinMaxAggInfo *mminfo, * cheapest path.) */ sorted_path = apply_projection_to_path(subroot, final_rel, sorted_path, - create_pathtarget(root, tlist)); + create_pathtarget(subroot, tlist)); /* * Determine cost to get just the first row of the presorted path. |