diff options
| author | Tom Lane | 2003-07-14 22:35:54 +0000 |
|---|---|---|
| committer | Tom Lane | 2003-07-14 22:35:54 +0000 |
| commit | 3d09f6c5609da36270c77b24f87313eac94a7635 (patch) | |
| tree | 7405aa50f97c4e0ab57c98bfe98e5755c771f029 /src/include/optimizer | |
| parent | b800196230c7eca35d781df39cf3a4b739c86300 (diff) | |
Make cost estimates for SubqueryScan more realistic: charge cpu_tuple_cost
for each row processed, and don't forget the evaluation cost of any
restriction clauses attached to the node. Per discussion with Greg Stark.
Diffstat (limited to 'src/include/optimizer')
| -rw-r--r-- | src/include/optimizer/cost.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/include/optimizer/cost.h b/src/include/optimizer/cost.h index 45c83191a26..ad2122f46e7 100644 --- a/src/include/optimizer/cost.h +++ b/src/include/optimizer/cost.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: cost.h,v 1.53 2003/06/11 15:01:15 momjian Exp $ + * $Id: cost.h,v 1.54 2003/07/14 22:35:54 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -56,6 +56,7 @@ extern void cost_index(Path *path, Query *root, List *indexQuals, bool is_injoin); extern void cost_tidscan(Path *path, Query *root, RelOptInfo *baserel, List *tideval); +extern void cost_subqueryscan(Path *path, RelOptInfo *baserel); extern void cost_functionscan(Path *path, Query *root, RelOptInfo *baserel); extern void cost_sort(Path *path, Query *root, |