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In the recent changes to make the planner account better for cache

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effects in a nestloop inner indexscan, I had only dealt with plain index
scans and the index portion of bitmap scans.  But there will be cache
benefits for the heap accesses of bitmap scans too, so fix
cost_bitmap_heap_scan() to account for that.
This commit is contained in:
Tom Lane
2006-07-22 15:41:56 +00:00
parent b0dc1fbbc5
commit 98359c3e3f
5 changed files with 62 additions and 32 deletions
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4
src/include/optimizer/cost.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/optimizer/cost.h,v 1.76 2006/06/06 17:59:58 tgl Exp $
* $PostgreSQL: pgsql/src/include/optimizer/cost.h,v 1.77 2006/07/22 15:41:56 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -61,7 +61,7 @@ extern void cost_seqscan(Path *path, PlannerInfo *root, RelOptInfo *baserel);
extern void cost_index(IndexPath *path, PlannerInfo *root, IndexOptInfo *index,
List *indexQuals, RelOptInfo *outer_rel);
extern void cost_bitmap_heap_scan(Path *path, PlannerInfo *root, RelOptInfo *baserel,
Path *bitmapqual);
Path *bitmapqual, RelOptInfo *outer_rel);
extern void cost_bitmap_and_node(BitmapAndPath *path, PlannerInfo *root);
extern void cost_bitmap_or_node(BitmapOrPath *path, PlannerInfo *root);
extern void cost_bitmap_tree_node(Path *path, Cost *cost, Selectivity *selec);

4
src/include/optimizer/pathnode.h
View File

@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/optimizer/pathnode.h,v 1.69 2006/07/01 18:38:33 tgl Exp $
* $PostgreSQL: pgsql/src/include/optimizer/pathnode.h,v 1.70 2006/07/22 15:41:56 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -37,7 +37,7 @@ extern IndexPath *create_index_path(PlannerInfo *root,
extern BitmapHeapPath *create_bitmap_heap_path(PlannerInfo *root,
RelOptInfo *rel,
Path *bitmapqual,
bool isjoininner);
RelOptInfo *outer_rel);
extern BitmapAndPath *create_bitmap_and_path(PlannerInfo *root,
RelOptInfo *rel,
List *bitmapquals);