/*-------------------------------------------------------------------------
 *
 * rewriteheap.h
 *	  Declarations for heap rewrite support functions
 *
 * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994-5, Regents of the University of California
 *
 * src/include/access/rewriteheap.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef REWRITE_HEAP_H
#define REWRITE_HEAP_H

#include "access/htup.h"
#include "utils/relcache.h"

/* struct definition is private to rewriteheap.c */
typedef struct RewriteStateData *RewriteState;

extern RewriteState begin_heap_rewrite(Relation OldHeap, Relation NewHeap,
				   TransactionId OldestXmin, TransactionId FreezeXid,
				   MultiXactId MultiXactCutoff, bool use_wal);
extern void end_heap_rewrite(RewriteState state);
extern void rewrite_heap_tuple(RewriteState state, HeapTuple oldTuple,
				   HeapTuple newTuple);
extern bool rewrite_heap_dead_tuple(RewriteState state, HeapTuple oldTuple);

#endif   /* REWRITE_HEAP_H */
