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/*-------------------------------------------------------------------------
*
* subselect.h
* Planning routines for subselects.
*
* Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/optimizer/subselect.h
*
*-------------------------------------------------------------------------
*/
#ifndef SUBSELECT_H
#define SUBSELECT_H
#include "nodes/pathnodes.h"
#include "nodes/plannodes.h"
extern void SS_process_ctes(PlannerInfo *root);
extern JoinExpr *convert_ANY_sublink_to_join(PlannerInfo *root,
SubLink *sublink,
Relids available_rels);
extern JoinExpr *convert_EXISTS_sublink_to_join(PlannerInfo *root,
SubLink *sublink,
bool under_not,
Relids available_rels);
extern Node *SS_replace_correlation_vars(PlannerInfo *root, Node *expr);
extern Node *SS_process_sublinks(PlannerInfo *root, Node *expr, bool isQual);
extern void SS_identify_outer_params(PlannerInfo *root);
extern void SS_charge_for_initplans(PlannerInfo *root, RelOptInfo *final_rel);
extern void SS_attach_initplans(PlannerInfo *root, Plan *plan);
extern void SS_finalize_plan(PlannerInfo *root, Plan *plan);
extern Param *SS_make_initplan_output_param(PlannerInfo *root,
Oid resulttype, int32 resulttypmod,
Oid resultcollation);
extern void SS_make_initplan_from_plan(PlannerInfo *root,
PlannerInfo *subroot, Plan *plan,
Param *prm);
#endif /* SUBSELECT_H */
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