joininfo.h

关系型数据库 Postgresql 6.5.2

/*-------------------------------------------------------------------------
 *
 * joininfo.h
 *	  prototypes for joininfo.c.
 *
 *
 * Copyright (c) 1994, Regents of the University of California
 *
 * $Id: joininfo.h,v 1.12 1999/05/25 22:43:08 momjian Exp $
 *
 *-------------------------------------------------------------------------
 */
#ifndef JOININFO_H
#define JOININFO_H

#include "nodes/nodes.h"
#include "nodes/relation.h"
#include "nodes/primnodes.h"

extern JoinInfo *joininfo_member(List *join_relids, List *joininfo_list);
extern JoinInfo *find_joininfo_node(RelOptInfo *this_rel, List *join_relids);
extern Var *other_join_clause_var(Var *var, Expr *clause);

#endif	 /* JOININFO_H */