Make CLUSTER MVCC-safe. Heikki Linnakangas

src/include/access/rewriteheap.h

@@ -0,0 +1,29 @@
+/*-------------------------------------------------------------------------
+ *
+ * rewriteheap.h
+ *	  Declarations for heap rewrite support functions
+ *
+ * Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994-5, Regents of the University of California
+ *
+ * $PostgreSQL: pgsql/src/include/access/rewriteheap.h,v 1.1 2007/04/08 01:26:33 tgl Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef REWRITE_HEAP_H
+#define REWRITE_HEAP_H
+
+#include "access/htup.h"
+#include "utils/rel.h"
+
+/* struct definition is private to rewriteheap.c */
+typedef struct RewriteStateData *RewriteState;
+
+extern RewriteState begin_heap_rewrite(Relation NewHeap,
+									   TransactionId OldestXmin, bool use_wal);
+extern void end_heap_rewrite(RewriteState state);
+extern void rewrite_heap_tuple(RewriteState state, HeapTuple oldTuple,
+							   HeapTuple newTuple);
+extern void rewrite_heap_dead_tuple(RewriteState state, HeapTuple oldTuple);
+
+#endif /* REWRITE_HEAP_H */