diff options
| author | Tom Lane | 2005-04-19 22:35:18 +0000 |
|---|---|---|
| committer | Tom Lane | 2005-04-19 22:35:18 +0000 |
| commit | 4a8c5d0375f17d8d961a280cbb640996aaa8bf0d (patch) | |
| tree | d12840ac104b45911406a533274add8456300815 /src/include/optimizer | |
| parent | 04ce41ca622c40c0501de1e31cf888f64f1736bf (diff) | |
Create executor and planner-backend support for decoupled heap and index
scans, using in-memory tuple ID bitmaps as the intermediary. The planner
frontend (path creation and cost estimation) is not there yet, so none
of this code can be executed. I have tested it using some hacked planner
code that is far too ugly to see the light of day, however. Committing
now so that the bulk of the infrastructure changes go in before the tree
drifts under me.
Diffstat (limited to 'src/include/optimizer')
| -rw-r--r-- | src/include/optimizer/cost.h | 4 | ||||
| -rw-r--r-- | src/include/optimizer/pathnode.h | 5 |
2 files changed, 7 insertions, 2 deletions
diff --git a/src/include/optimizer/cost.h b/src/include/optimizer/cost.h index 9e379dd0c4b..8b1445dadf1 100644 --- a/src/include/optimizer/cost.h +++ b/src/include/optimizer/cost.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/optimizer/cost.h,v 1.63 2005/03/27 06:29:49 tgl Exp $ + * $PostgreSQL: pgsql/src/include/optimizer/cost.h,v 1.64 2005/04/19 22:35:18 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -53,6 +53,8 @@ extern double clamp_row_est(double nrows); extern void cost_seqscan(Path *path, Query *root, RelOptInfo *baserel); extern void cost_index(Path *path, Query *root, IndexOptInfo *index, List *indexQuals, bool is_injoin); +extern void cost_bitmap_scan(Path *path, Query *root, RelOptInfo *baserel, + Node *bitmapqual, bool is_injoin); extern void cost_tidscan(Path *path, Query *root, RelOptInfo *baserel, List *tideval); extern void cost_subqueryscan(Path *path, RelOptInfo *baserel); diff --git a/src/include/optimizer/pathnode.h b/src/include/optimizer/pathnode.h index 44e9b087b33..308c5daa6cd 100644 --- a/src/include/optimizer/pathnode.h +++ b/src/include/optimizer/pathnode.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/optimizer/pathnode.h,v 1.57 2005/03/27 06:29:49 tgl Exp $ + * $PostgreSQL: pgsql/src/include/optimizer/pathnode.h,v 1.58 2005/04/19 22:35:18 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -33,6 +33,9 @@ extern IndexPath *create_index_path(Query *root, List *restriction_clauses, List *pathkeys, ScanDirection indexscandir); +extern BitmapHeapPath *create_bitmap_heap_path(Query *root, + RelOptInfo *rel, + Node *bitmapqual); extern TidPath *create_tidscan_path(Query *root, RelOptInfo *rel, List *tideval); extern AppendPath *create_append_path(RelOptInfo *rel, List *subpaths); |