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/*-------------------------------------------------------------------------
*
* rewriteHandler.h
*
*
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: rewriteHandler.h,v 1.8 1999/02/13 23:22:00 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef REWRITEHANDLER_H
#define REWRITEHANDLER_H
#include "nodes/nodes.h"
#include "nodes/parsenodes.h"
struct _rewrite_meta_knowledge
{
List *rt;
int rt_index;
bool instead_flag;
int event;
CmdType action;
int current_varno;
int new_varno;
Query *rule_action;
Node *rule_qual;
bool nothing;
};
typedef struct _rewrite_meta_knowledge RewriteInfo;
extern List *QueryRewrite(Query *parsetree);
/***S*I***/
extern Query *Except_Intersect_Rewrite(Query *parsetree);
extern void create_list(Node *ptr, List **intersect_list);
extern Node *intersect_tree_analyze(Node *tree, Node *first_select, Node *parsetree);
extern void check_targetlists_are_compatible(List *prev_target, List *current_target);
#endif /* REWRITEHANDLER_H */
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