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/*-------------------------------------------------------------------------
*
* subselect.h
*
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/optimizer/subselect.h,v 1.31 2008/07/10 02:14:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef SUBSELECT_H
#define SUBSELECT_H
#include "nodes/plannodes.h"
#include "nodes/relation.h"
extern Node *convert_IN_to_join(PlannerInfo *root, SubLink *sublink);
extern Node *SS_replace_correlation_vars(PlannerInfo *root, Node *expr);
extern Node *SS_process_sublinks(PlannerInfo *root, Node *expr, bool isQual);
extern void SS_finalize_plan(PlannerInfo *root, Plan *plan,
bool attach_initplans);
extern Param *SS_make_initplan_from_plan(PlannerInfo *root, Plan *plan,
Oid resulttype, int32 resulttypmod);
#endif /* SUBSELECT_H */
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