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/*-------------------------------------------------------------------------
*
* restrictinfo.h
* prototypes for restrictinfo.c.
*
*
* Portions Copyright (c) 1996-2004, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/optimizer/restrictinfo.h,v 1.25 2004/08/29 05:06:57 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef RESTRICTINFO_H
#define RESTRICTINFO_H
#include "nodes/relation.h"
extern RestrictInfo *make_restrictinfo(Expr *clause, bool is_pushed_down,
bool valid_everywhere);
extern List *make_restrictinfo_from_indexclauses(List *indexclauses,
bool is_pushed_down,
bool valid_everywhere);
extern bool restriction_is_or_clause(RestrictInfo *restrictinfo);
extern List *get_actual_clauses(List *restrictinfo_list);
extern void get_actual_join_clauses(List *restrictinfo_list,
List **joinquals, List **otherquals);
extern List *remove_redundant_join_clauses(Query *root,
List *restrictinfo_list,
JoinType jointype);
extern List *select_nonredundant_join_clauses(Query *root,
List *restrictinfo_list,
List *reference_list,
JoinType jointype);
#endif /* RESTRICTINFO_H */
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