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Current File : //usr/include/pgsql/server/optimizer/restrictinfo.h
/*-------------------------------------------------------------------------
 *
 * restrictinfo.h
 *	  prototypes for restrictinfo.c.
 *
 *
 * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/optimizer/restrictinfo.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef RESTRICTINFO_H
#define RESTRICTINFO_H

#include "nodes/relation.h"


/* Convenience macro for the common case of a valid-everywhere qual */
#define make_simple_restrictinfo(clause)  \
	make_restrictinfo(clause, true, false, false, NULL, NULL, NULL)

extern RestrictInfo *make_restrictinfo(Expr *clause,
				  bool is_pushed_down,
				  bool outerjoin_delayed,
				  bool pseudoconstant,
				  Relids required_relids,
				  Relids outer_relids,
				  Relids nullable_relids);
extern List *make_restrictinfo_from_bitmapqual(Path *bitmapqual,
								  bool is_pushed_down,
								  bool include_predicates);
extern List *make_restrictinfos_from_actual_clauses(PlannerInfo *root,
									   List *clause_list);
extern bool restriction_is_or_clause(RestrictInfo *restrictinfo);
extern List *get_actual_clauses(List *restrictinfo_list);
extern List *get_all_actual_clauses(List *restrictinfo_list);
extern List *extract_actual_clauses(List *restrictinfo_list,
					   bool pseudoconstant);
extern void extract_actual_join_clauses(List *restrictinfo_list,
							List **joinquals,
							List **otherquals);
extern bool join_clause_is_movable_to(RestrictInfo *rinfo, Index baserelid);
extern bool join_clause_is_movable_into(RestrictInfo *rinfo,
							Relids currentrelids,
							Relids current_and_outer);

#endif   /* RESTRICTINFO_H */

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