src/include/optimizer/subselect.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * subselect.h
   4  *
   5  * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
   6  * Portions Copyright (c) 1994, Regents of the University of California
   7  *
   8  * $PostgreSQL$
   9  *
  10  *-------------------------------------------------------------------------
  11  */
  12 #ifndef SUBSELECT_H
  13 #define SUBSELECT_H
  14
  15 #include "nodes/plannodes.h"
  16 #include "nodes/relation.h"
  17
  18 extern void SS_process_ctes(PlannerInfo *root);
  19 extern bool convert_ANY_sublink_to_join(PlannerInfo *root, SubLink *sublink,
  20                                                                                 Relids available_rels,
  21                                                                                 Node **new_qual, List **fromlist);
  22 extern bool convert_EXISTS_sublink_to_join(PlannerInfo *root, SubLink *sublink,
  23                                                                                    bool under_not,
  24                                                                                    Relids available_rels,
  25                                                                                    Node **new_qual, List **fromlist);
  26 extern Node *SS_replace_correlation_vars(PlannerInfo *root, Node *expr);
  27 extern Node *SS_process_sublinks(PlannerInfo *root, Node *expr, bool isQual);
  28 extern void SS_finalize_plan(PlannerInfo *root, Plan *plan,
  29                                                          bool attach_initplans);
  30 extern Param *SS_make_initplan_from_plan(PlannerInfo *root, Plan *plan,
  31                                                    Oid resulttype, int32 resulttypmod);
  32 extern int      SS_assign_worktable_param(PlannerInfo *root);
  33
  34 #endif   /* SUBSELECT_H */