src/include/optimizer/subselect.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * subselect.h
   4  *        Planning routines for subselects.
   5  *
   6  * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
   7  * Portions Copyright (c) 1994, Regents of the University of California
   8  *
   9  * src/include/optimizer/subselect.h
  10  *
  11  *-------------------------------------------------------------------------
  12  */
  13 #ifndef SUBSELECT_H
  14 #define SUBSELECT_H
  15
  16 #include "nodes/pathnodes.h"
  17 #include "nodes/plannodes.h"
  18
  19 extern void SS_process_ctes(PlannerInfo *root);
  20 extern JoinExpr *convert_ANY_sublink_to_join(PlannerInfo *root,
  21                                                                                          SubLink *sublink,
  22                                                                                          Relids available_rels);
  23 extern JoinExpr *convert_EXISTS_sublink_to_join(PlannerInfo *root,
  24                                                                                                 SubLink *sublink,
  25                                                                                                 bool under_not,
  26                                                                                                 Relids available_rels);
  27 extern Node *SS_replace_correlation_vars(PlannerInfo *root, Node *expr);
  28 extern Node *SS_process_sublinks(PlannerInfo *root, Node *expr, bool isQual);
  29 extern void SS_identify_outer_params(PlannerInfo *root);
  30 extern void SS_charge_for_initplans(PlannerInfo *root, RelOptInfo *final_rel);
  31 extern void SS_attach_initplans(PlannerInfo *root, Plan *plan);
  32 extern void SS_finalize_plan(PlannerInfo *root, Plan *plan);
  33 extern Param *SS_make_initplan_output_param(PlannerInfo *root,
  34                                                                                         Oid resulttype, int32 resulttypmod,
  35                                                                                         Oid resultcollation);
  36 extern void SS_make_initplan_from_plan(PlannerInfo *root,
  37                                                                            PlannerInfo *subroot, Plan *plan,
  38                                                                            Param *prm);
  39
  40 #endif                                                  /* SUBSELECT_H */