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Diffstat (limited to 'src/backend/optimizer/path/costsize.c')
| -rw-r--r-- | src/backend/optimizer/path/costsize.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/backend/optimizer/path/costsize.c b/src/backend/optimizer/path/costsize.c index 3507f18007e..1732d715643 100644 --- a/src/backend/optimizer/path/costsize.c +++ b/src/backend/optimizer/path/costsize.c @@ -1590,6 +1590,14 @@ cost_windowagg(Path *path, PlannerInfo *root, startup_cost += argcosts.startup; wfunccost += argcosts.per_tuple; + /* + * Add the filter's cost to per-input-row costs. XXX We should reduce + * input expression costs according to filter selectivity. + */ + cost_qual_eval_node(&argcosts, (Node *) wfunc->aggfilter, root); + startup_cost += argcosts.startup; + wfunccost += argcosts.per_tuple; + total_cost += wfunccost * input_tuples; } |