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var.h

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    • PostgreSQL Daemon's avatar
      55b11325
      · 55b11325
      PostgreSQL Daemon authored 
      make sure the $Id tags are converted to $PostgreSQL as well ...
      55b11325
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      PostgreSQL Daemon authored 
      make sure the $Id tags are converted to $PostgreSQL as well ...
    var.h 1.05 KiB 
    /*-------------------------------------------------------------------------
 *
 * var.h
 *	  prototypes for var.c.
 *
 *
 * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * $PostgreSQL: pgsql/src/include/optimizer/var.h,v 1.29 2003/11/29 22:41:07 pgsql Exp $
 *
 *-------------------------------------------------------------------------
 */
#ifndef VAR_H
#define VAR_H

#include "nodes/relation.h"


extern Relids pull_varnos(Node *node);
extern bool contain_var_reference(Node *node, int varno, int varattno,
					  int levelsup);
extern bool contain_whole_tuple_var(Node *node, int varno, int levelsup);
extern bool contain_var_clause(Node *node);
extern bool contain_vars_of_level(Node *node, int levelsup);
extern bool contain_vars_above_level(Node *node, int levelsup);
extern int	find_minimum_var_level(Node *node);
extern List *pull_var_clause(Node *node, bool includeUpperVars);
extern Node *flatten_join_alias_vars(Query *root, Node *node);

#endif   /* VAR_H */