diff options
Diffstat (limited to 'src/include/optimizer/paths.h')
| -rw-r--r-- | src/include/optimizer/paths.h | 31 |
1 files changed, 19 insertions, 12 deletions
diff --git a/src/include/optimizer/paths.h b/src/include/optimizer/paths.h index 256aac90d75..d7a0cc2d546 100644 --- a/src/include/optimizer/paths.h +++ b/src/include/optimizer/paths.h @@ -8,7 +8,7 @@ * Portions Copyright (c) 1996-2000, PostgreSQL, Inc * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: paths.h,v 1.42 2000/02/07 04:41:04 tgl Exp $ + * $Id: paths.h,v 1.43 2000/02/15 20:49:26 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -33,9 +33,9 @@ extern RelOptInfo *make_one_rel(Query *root); * indxpath.c * routines to generate index paths */ -extern List *create_index_paths(Query *root, RelOptInfo *rel, List *indices, - List *restrictinfo_list, - List *joininfo_list); +extern void create_index_paths(Query *root, RelOptInfo *rel, List *indices, + List *restrictinfo_list, + List *joininfo_list); extern Oid indexable_operator(Expr *clause, Oid opclass, Oid relam, bool indexkey_on_left); extern List *extract_or_indexqual_conditions(RelOptInfo *rel, @@ -47,14 +47,14 @@ extern List *expand_indexqual_conditions(List *indexquals); * orindxpath.c * additional routines for indexable OR clauses */ -extern List *create_or_index_paths(Query *root, RelOptInfo *rel, - List *clauses); +extern void create_or_index_paths(Query *root, RelOptInfo *rel, + List *clauses); /* * tidpath.h * routines to generate tid paths */ -extern List *create_tidscan_paths(Query *root, RelOptInfo *rel); +extern void create_tidscan_paths(Query *root, RelOptInfo *rel); /* * joinpath.c @@ -89,20 +89,27 @@ typedef enum PATHKEYS_DIFFERENT /* neither pathkey includes the other */ } PathKeysComparison; +extern void add_equijoined_keys(Query *root, RestrictInfo *restrictinfo); +extern List *canonicalize_pathkeys(Query *root, List *pathkeys); extern PathKeysComparison compare_pathkeys(List *keys1, List *keys2); extern bool pathkeys_contained_in(List *keys1, List *keys2); extern Path *get_cheapest_path_for_pathkeys(List *paths, List *pathkeys, - bool indexpaths_only); + CostSelector cost_criterion); +extern Path *get_cheapest_fractional_path_for_pathkeys(List *paths, + List *pathkeys, + double fraction); extern List *build_index_pathkeys(Query *root, RelOptInfo *rel, - IndexOptInfo *index); + IndexOptInfo *index, + ScanDirection scandir); extern List *build_join_pathkeys(List *outer_pathkeys, - List *join_rel_tlist, List *joinclauses); -extern bool commute_pathkeys(List *pathkeys); + List *join_rel_tlist, + List *equi_key_list); extern List *make_pathkeys_for_sortclauses(List *sortclauses, List *tlist); extern List *find_mergeclauses_for_pathkeys(List *pathkeys, List *restrictinfos); -extern List *make_pathkeys_for_mergeclauses(List *mergeclauses, +extern List *make_pathkeys_for_mergeclauses(Query *root, + List *mergeclauses, List *tlist); #endif /* PATHS_H */ |