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/*-------------------------------------------------------------------------
 *
 * nodeFuncs.h--
 *
 *
 *
 * Copyright (c) 1994, Regents of the University of California
 *
 * $Id: nodeFuncs.h,v 1.5 1997/09/08 21:52:45 momjian Exp $
 *
 *-------------------------------------------------------------------------
 */
#ifndef NODEFUNCS_H
#define NODEFUNCS_H

extern bool single_node(Node *node);
extern bool var_is_outer(Var *var);
extern bool var_is_rel(Var *var);
extern Oper *replace_opid(Oper *oper);
extern bool non_null(Expr *c);

#endif							/* NODEFUNCS_H */