diff options
Diffstat (limited to 'src/include/optimizer/cost.h')
| -rw-r--r-- | src/include/optimizer/cost.h | 38 |
1 files changed, 24 insertions, 14 deletions
diff --git a/src/include/optimizer/cost.h b/src/include/optimizer/cost.h index cbf6df063a3..83b039c99de 100644 --- a/src/include/optimizer/cost.h +++ b/src/include/optimizer/cost.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: cost.h,v 1.39 2001/05/07 00:43:26 tgl Exp $ + * $Id: cost.h,v 1.40 2001/06/05 05:26:05 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -52,20 +52,27 @@ extern bool enable_nestloop; extern bool enable_mergejoin; extern bool enable_hashjoin; -extern void cost_seqscan(Path *path, RelOptInfo *baserel); +extern void cost_seqscan(Path *path, Query *root, + RelOptInfo *baserel); extern void cost_index(Path *path, Query *root, - RelOptInfo *baserel, IndexOptInfo *index, - List *indexQuals, bool is_injoin); -extern void cost_tidscan(Path *path, RelOptInfo *baserel, List *tideval); -extern void cost_sort(Path *path, List *pathkeys, double tuples, int width); -extern void cost_nestloop(Path *path, Path *outer_path, Path *inner_path, - List *restrictlist); -extern void cost_mergejoin(Path *path, Path *outer_path, Path *inner_path, - List *restrictlist, - List *outersortkeys, List *innersortkeys); -extern void cost_hashjoin(Path *path, Path *outer_path, Path *inner_path, - List *restrictlist, Selectivity innerbucketsize); -extern Selectivity estimate_hash_bucketsize(Query *root, Var *var); + RelOptInfo *baserel, IndexOptInfo *index, + List *indexQuals, bool is_injoin); +extern void cost_tidscan(Path *path, Query *root, + RelOptInfo *baserel, List *tideval); +extern void cost_sort(Path *path, Query *root, + List *pathkeys, double tuples, int width); +extern void cost_nestloop(Path *path, Query *root, + Path *outer_path, Path *inner_path, + List *restrictlist); +extern void cost_mergejoin(Path *path, Query *root, + Path *outer_path, Path *inner_path, + List *restrictlist, + List *mergeclauses, + List *outersortkeys, List *innersortkeys); +extern void cost_hashjoin(Path *path, Query *root, + Path *outer_path, Path *inner_path, + List *restrictlist, + List *hashclauses); extern Cost cost_qual_eval(List *quals); extern void set_baserel_size_estimates(Query *root, RelOptInfo *rel); extern void set_joinrel_size_estimates(Query *root, RelOptInfo *rel, @@ -84,5 +91,8 @@ extern Selectivity restrictlist_selectivity(Query *root, extern Selectivity clauselist_selectivity(Query *root, List *clauses, int varRelid); +extern Selectivity clause_selectivity(Query *root, + Node *clause, + int varRelid); #endif /* COST_H */ |