postgresql/src/include/optimizer/var.h
2001-11-05 17:46:40 +00:00

26 lines
802 B
C

/*-------------------------------------------------------------------------
*
* var.h
* prototypes for var.c.
*
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: var.h,v 1.17 2001/11/05 17:46:34 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef VAR_H
#define VAR_H
#include "nodes/primnodes.h"
extern List *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 List *pull_var_clause(Node *node, bool includeUpperVars);
#endif /* VAR_H */