1 /*------------------------------------------------------------------------- 2 * 3 * plancat.h 4 * prototypes for plancat.c. 5 * 6 * 7 * Portions Copyright (c) 1996-2018, 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/relation.h" 18 #include "utils/relcache.h" 19 20 /* Hook for plugins to get control in get_relation_info() */ 21 typedef void (*get_relation_info_hook_type) (PlannerInfo *root, 22 Oid relationObjectId, 23 bool inhparent, 24 RelOptInfo *rel); 25 extern PGDLLIMPORT get_relation_info_hook_type get_relation_info_hook; 26 27 28 extern void get_relation_info(PlannerInfo *root, Oid relationObjectId, 29 bool inhparent, RelOptInfo *rel); 30 31 extern List *infer_arbiter_indexes(PlannerInfo *root); 32 33 extern void estimate_rel_size(Relation rel, int32 *attr_widths, 34 BlockNumber *pages, double *tuples, double *allvisfrac); 35 36 extern int32 get_relation_data_width(Oid relid, int32 *attr_widths); 37 38 extern bool relation_excluded_by_constraints(PlannerInfo *root, 39 RelOptInfo *rel, RangeTblEntry *rte); 40 41 extern List *build_physical_tlist(PlannerInfo *root, RelOptInfo *rel); 42 43 extern bool has_unique_index(RelOptInfo *rel, AttrNumber attno); 44 45 extern Selectivity restriction_selectivity(PlannerInfo *root, 46 Oid operatorid, 47 List *args, 48 Oid inputcollid, 49 int varRelid); 50 51 extern Selectivity join_selectivity(PlannerInfo *root, 52 Oid operatorid, 53 List *args, 54 Oid inputcollid, 55 JoinType jointype, 56 SpecialJoinInfo *sjinfo); 57 58 extern bool has_row_triggers(PlannerInfo *root, Index rti, CmdType event); 59 60 #endif /* PLANCAT_H */ 61