1 /*-------------------------------------------------------------------------
4 * prototypes for pathnode.c, relnode.c.
7 * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
8 * Portions Copyright (c) 1994, Regents of the University of California
10 * $PostgreSQL: pgsql/src/include/optimizer/pathnode.h,v 1.78 2008/08/14 18:48:00 tgl Exp $
12 *-------------------------------------------------------------------------
17 #include "nodes/relation.h"
21 * prototypes for pathnode.c
23 extern int compare_path_costs(Path *path1, Path *path2,
24 CostSelector criterion);
25 extern int compare_fractional_path_costs(Path *path1, Path *path2,
27 extern void set_cheapest(RelOptInfo *parent_rel);
28 extern void add_path(RelOptInfo *parent_rel, Path *new_path);
30 extern Path *create_seqscan_path(PlannerInfo *root, RelOptInfo *rel);
31 extern IndexPath *create_index_path(PlannerInfo *root,
35 ScanDirection indexscandir,
36 RelOptInfo *outer_rel);
37 extern BitmapHeapPath *create_bitmap_heap_path(PlannerInfo *root,
40 RelOptInfo *outer_rel);
41 extern BitmapAndPath *create_bitmap_and_path(PlannerInfo *root,
44 extern BitmapOrPath *create_bitmap_or_path(PlannerInfo *root,
47 extern TidPath *create_tidscan_path(PlannerInfo *root, RelOptInfo *rel,
49 extern AppendPath *create_append_path(RelOptInfo *rel, List *subpaths);
50 extern ResultPath *create_result_path(List *quals);
51 extern MaterialPath *create_material_path(RelOptInfo *rel, Path *subpath);
52 extern UniquePath *create_unique_path(PlannerInfo *root, RelOptInfo *rel,
53 Path *subpath, SpecialJoinInfo *sjinfo);
54 extern Path *create_subqueryscan_path(RelOptInfo *rel, List *pathkeys);
55 extern Path *create_functionscan_path(PlannerInfo *root, RelOptInfo *rel);
56 extern Path *create_valuesscan_path(PlannerInfo *root, RelOptInfo *rel);
58 extern NestPath *create_nestloop_path(PlannerInfo *root,
61 SpecialJoinInfo *sjinfo,
64 List *restrict_clauses,
67 extern MergePath *create_mergejoin_path(PlannerInfo *root,
70 SpecialJoinInfo *sjinfo,
73 List *restrict_clauses,
79 extern HashPath *create_hashjoin_path(PlannerInfo *root,
82 SpecialJoinInfo *sjinfo,
85 List *restrict_clauses,
89 * prototypes for relnode.c
91 extern RelOptInfo *build_simple_rel(PlannerInfo *root, int relid,
92 RelOptKind reloptkind);
93 extern RelOptInfo *find_base_rel(PlannerInfo *root, int relid);
94 extern RelOptInfo *find_join_rel(PlannerInfo *root, Relids relids);
95 extern RelOptInfo *build_join_rel(PlannerInfo *root,
97 RelOptInfo *outer_rel,
98 RelOptInfo *inner_rel,
99 SpecialJoinInfo *sjinfo,
100 List **restrictlist_ptr);
102 #endif /* PATHNODE_H */