src/include/optimizer/restrictinfo.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * restrictinfo.h
   4  *        prototypes for restrictinfo.c.
   5  *
   6  *
   7  * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
   8  * Portions Copyright (c) 1994, Regents of the University of California
   9  *
  10  * $PostgreSQL$
  11  *
  12  *-------------------------------------------------------------------------
  13  */
  14 #ifndef RESTRICTINFO_H
  15 #define RESTRICTINFO_H
  16
  17 #include "nodes/relation.h"
  18
  19
  20 extern RestrictInfo *make_restrictinfo(Expr *clause,
  21                                   bool is_pushed_down,
  22                                   bool outerjoin_delayed,
  23                                   bool pseudoconstant,
  24                                   Relids required_relids);
  25 extern List *make_restrictinfo_from_bitmapqual(Path *bitmapqual,
  26                                                                   bool is_pushed_down,
  27                                                                   bool include_predicates);
  28 extern bool restriction_is_or_clause(RestrictInfo *restrictinfo);
  29 extern List *get_actual_clauses(List *restrictinfo_list);
  30 extern List *extract_actual_clauses(List *restrictinfo_list,
  31                                            bool pseudoconstant);
  32 extern void extract_actual_join_clauses(List *restrictinfo_list,
  33                                                         List **joinquals,
  34                                                         List **otherquals);
  35 extern List *select_nonredundant_join_clauses(PlannerInfo *root,
  36                                                                  List *restrictinfo_list,
  37                                                                  List *reference_list);
  38
  39 #endif   /* RESTRICTINFO_H */