1/*-------------------------------------------------------------------------
2 *
3 * plancat.h
4 * prototypes for plancat.c.
5 *
6 *
7 * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
8 * Portions Copyright (c) 1994, Regents of the University of California
9 *
10 * src/include/optimizer/plancat.h
11 *
12 *-------------------------------------------------------------------------
13 */
14#ifndef PLANCAT_H
15#define PLANCAT_H
16
17#include "nodes/pathnodes.h"
18#include "utils/relcache.h"
19
20/* Hook for plugins to get control in get_relation_info() */
21typedef void (*get_relation_info_hook_type) (PlannerInfo *root,
22 Oid relationObjectId,
23 bool inhparent,
24 RelOptInfo *rel);
25extern PGDLLIMPORT get_relation_info_hook_type get_relation_info_hook;
26
27
28extern void get_relation_info(PlannerInfo *root, Oid relationObjectId,
29 bool inhparent, RelOptInfo *rel);
30
31extern List *infer_arbiter_indexes(PlannerInfo *root);
32
33extern void estimate_rel_size(Relation rel, int32 *attr_widths,
34 BlockNumber *pages, double *tuples, double *allvisfrac);
35
36extern int32 get_rel_data_width(Relation rel, int32 *attr_widths);
37extern int32 get_relation_data_width(Oid relid, int32 *attr_widths);
38
39extern bool relation_excluded_by_constraints(PlannerInfo *root,
40 RelOptInfo *rel, RangeTblEntry *rte);
41
42extern List *build_physical_tlist(PlannerInfo *root, RelOptInfo *rel);
43
44extern bool has_unique_index(RelOptInfo *rel, AttrNumber attno);
45
46extern Selectivity restriction_selectivity(PlannerInfo *root,
47 Oid operatorid,
48 List *args,
49 Oid inputcollid,
50 int varRelid);
51
52extern Selectivity join_selectivity(PlannerInfo *root,
53 Oid operatorid,
54 List *args,
55 Oid inputcollid,
56 JoinType jointype,
57 SpecialJoinInfo *sjinfo);
58
59extern Selectivity function_selectivity(PlannerInfo *root,
60 Oid funcid,
61 List *args,
62 Oid inputcollid,
63 bool is_join,
64 int varRelid,
65 JoinType jointype,
66 SpecialJoinInfo *sjinfo);
67
68extern void add_function_cost(PlannerInfo *root, Oid funcid, Node *node,
69 QualCost *cost);
70
71extern double get_function_rows(PlannerInfo *root, Oid funcid, Node *node);
72
73extern bool has_row_triggers(PlannerInfo *root, Index rti, CmdType event);
74
75extern bool has_stored_generated_columns(PlannerInfo *root, Index rti);
76
77#endif /* PLANCAT_H */
78