Remove the mostly-stubbed-out-anyway support routines for WAL UNDO.

That code is never going to be used in the foreseeable future, and
where it's more than a stub it's making the redo routines harder to
read.

src/backend/access/gist/gist.c

@@ -8,7 +8,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/access/gist/gist.c,v 1.117 2005/05/17 03:34:18 neilc Exp $
+ *	  $PostgreSQL: pgsql/src/backend/access/gist/gist.c,v 1.118 2005/06/06 17:01:21 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1732,12 +1732,6 @@ gist_redo(XLogRecPtr lsn, XLogRecord *record)
 	elog(PANIC, "gist_redo: unimplemented");
 }
 
-void
-gist_undo(XLogRecPtr lsn, XLogRecord *record)
-{
-	elog(PANIC, "gist_undo: unimplemented");
-}
-
 void
 gist_desc(char *buf, uint8 xl_info, char *rec)
 {

src/backend/access/hash/hash.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/access/hash/hash.c,v 1.79 2005/05/11 06:24:51 neilc Exp $
+ *	  $PostgreSQL: pgsql/src/backend/access/hash/hash.c,v 1.80 2005/06/06 17:01:21 tgl Exp $
  *
  * NOTES
  *	  This file contains only the public interface routines.
@@ -671,12 +671,6 @@ hash_redo(XLogRecPtr lsn, XLogRecord *record)
 	elog(PANIC, "hash_redo: unimplemented");
 }
 
-void
-hash_undo(XLogRecPtr lsn, XLogRecord *record)
-{
-	elog(PANIC, "hash_undo: unimplemented");
-}
-
 void
 hash_desc(char *buf, uint8 xl_info, char *rec)
 {

src/backend/access/rtree/rtree.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/access/rtree/rtree.c,v 1.89 2005/05/11 06:24:54 neilc Exp $
+ *	  $PostgreSQL: pgsql/src/backend/access/rtree/rtree.c,v 1.90 2005/06/06 17:01:22 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1303,12 +1303,6 @@ rtree_redo(XLogRecPtr lsn, XLogRecord *record)
 	elog(PANIC, "rtree_redo: unimplemented");
 }
 
-void
-rtree_undo(XLogRecPtr lsn, XLogRecord *record)
-{
-	elog(PANIC, "rtree_undo: unimplemented");
-}
-
 void
 rtree_desc(char *buf, uint8 xl_info, char *rec)
 {

src/backend/access/transam/clog.c

@@ -24,7 +24,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/backend/access/transam/clog.c,v 1.28 2004/12/31 21:59:29 pgsql Exp $
+ * $PostgreSQL: pgsql/src/backend/access/transam/clog.c,v 1.29 2005/06/06 17:01:22 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -411,11 +411,6 @@ clog_redo(XLogRecPtr lsn, XLogRecord *record)
 	}
 }
 
-void
-clog_undo(XLogRecPtr lsn, XLogRecord *record)
-{
-}
-
 void
 clog_desc(char *buf, uint8 xl_info, char *rec)
 {

src/backend/access/transam/rmgr.c

@@ -3,7 +3,7 @@
  *
  * Resource managers definition
  *
- * $PostgreSQL: pgsql/src/backend/access/transam/rmgr.c,v 1.17 2005/05/17 03:34:18 neilc Exp $
+ * $PostgreSQL: pgsql/src/backend/access/transam/rmgr.c,v 1.18 2005/06/06 17:01:22 tgl Exp $
  */
 #include "postgres.h"
 
@@ -22,21 +22,20 @@
 
 
 const RmgrData RmgrTable[RM_MAX_ID + 1] = {
-	{"XLOG", xlog_redo, xlog_undo, xlog_desc, NULL, NULL},
-	{"Transaction", xact_redo, xact_undo, xact_desc, NULL, NULL},
-	{"Storage", smgr_redo, smgr_undo, smgr_desc, NULL, NULL},
-	{"CLOG", clog_redo, clog_undo, clog_desc, NULL, NULL},
-	{"Database", dbase_redo, dbase_undo, dbase_desc, NULL, NULL},
-	{"Tablespace", tblspc_redo, tblspc_undo, tblspc_desc, NULL, NULL},
-	{"Reserved 6", NULL, NULL, NULL, NULL, NULL},
-	{"Reserved 7", NULL, NULL, NULL, NULL, NULL},
-	{"Reserved 8", NULL, NULL, NULL, NULL, NULL},
-	{"Reserved 9", NULL, NULL, NULL, NULL, NULL},
-	{"Heap", heap_redo, heap_undo, heap_desc, NULL, NULL},
-	{"Btree", btree_redo, btree_undo, btree_desc,
-	btree_xlog_startup, btree_xlog_cleanup},
-	{"Hash", hash_redo, hash_undo, hash_desc, NULL, NULL},
-	{"Rtree", rtree_redo, rtree_undo, rtree_desc, NULL, NULL},
-	{"Gist", gist_redo, gist_undo, gist_desc, NULL, NULL},
-	{"Sequence", seq_redo, seq_undo, seq_desc, NULL, NULL}
+	{"XLOG", xlog_redo, xlog_desc, NULL, NULL},
+	{"Transaction", xact_redo, xact_desc, NULL, NULL},
+	{"Storage", smgr_redo, smgr_desc, NULL, NULL},
+	{"CLOG", clog_redo, clog_desc, NULL, NULL},
+	{"Database", dbase_redo, dbase_desc, NULL, NULL},
+	{"Tablespace", tblspc_redo, tblspc_desc, NULL, NULL},
+	{"Reserved 6", NULL, NULL, NULL, NULL},
+	{"Reserved 7", NULL, NULL, NULL, NULL},
+	{"Reserved 8", NULL, NULL, NULL, NULL},
+	{"Reserved 9", NULL, NULL, NULL, NULL},
+	{"Heap", heap_redo, heap_desc, NULL, NULL},
+	{"Btree", btree_redo, btree_desc, btree_xlog_startup, btree_xlog_cleanup},
+	{"Hash", hash_redo, hash_desc, NULL, NULL},
+	{"Rtree", rtree_redo, rtree_desc, NULL, NULL},
+	{"Gist", gist_redo, gist_desc, NULL, NULL},
+	{"Sequence", seq_redo, seq_desc, NULL, NULL}
 };

src/backend/access/transam/xact.c

@@ -10,7 +10,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/access/transam/xact.c,v 1.202 2005/05/19 23:58:51 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/access/transam/xact.c,v 1.203 2005/06/06 17:01:22 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -3844,17 +3844,6 @@ xact_redo(XLogRecPtr lsn, XLogRecord *record)
 		elog(PANIC, "xact_redo: unknown op code %u", info);
 }
 
-void
-xact_undo(XLogRecPtr lsn, XLogRecord *record)
-{
-	uint8		info = record->xl_info & ~XLR_INFO_MASK;
-
-	if (info == XLOG_XACT_COMMIT)		/* shouldn't be called by XLOG */
-		elog(PANIC, "xact_undo: can't undo committed xaction");
-	else if (info != XLOG_XACT_ABORT)
-		elog(PANIC, "xact_redo: unknown op code %u", info);
-}
-
 void
 xact_desc(char *buf, uint8 xl_info, char *rec)
 {

src/backend/access/transam/xlog.c

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.195 2005/06/02 05:55:28 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.196 2005/06/06 17:01:23 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -2372,7 +2372,7 @@ RestoreBkpBlocks(XLogRecord *record, XLogRecPtr lsn)
 		memcpy(&bkpb, blk, sizeof(BkpBlock));
 		blk += sizeof(BkpBlock);
 
-		reln = XLogOpenRelation(true, record->xl_rmid, bkpb.node);
+		reln = XLogOpenRelation(bkpb.node);
 
 		if (reln)
 		{
@@ -5308,11 +5308,6 @@ xlog_redo(XLogRecPtr lsn, XLogRecord *record)
 	}
 }
 
-void
-xlog_undo(XLogRecPtr lsn, XLogRecord *record)
-{
-}
-
 void
 xlog_desc(char *buf, uint8 xl_info, char *rec)
 {

src/backend/access/transam/xlogutils.c

@@ -11,7 +11,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/backend/access/transam/xlogutils.c,v 1.37 2005/05/29 04:23:03 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/access/transam/xlogutils.c,v 1.38 2005/06/06 17:01:23 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -186,7 +186,7 @@ XLogCloseRelationCache(void)
  * Open a relation during XLOG replay
  */
 Relation
-XLogOpenRelation(bool redo, RmgrId rmid, RelFileNode rnode)
+XLogOpenRelation(RelFileNode rnode)
 {
 	XLogRelDesc *res;
 	XLogRelCacheEntry *hentry;

src/backend/commands/dbcommands.c

@@ -15,7 +15,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/commands/dbcommands.c,v 1.157 2005/05/19 21:35:45 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/commands/dbcommands.c,v 1.158 2005/06/06 17:01:23 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1334,12 +1334,6 @@ dbase_redo(XLogRecPtr lsn, XLogRecord *record)
 		elog(PANIC, "dbase_redo: unknown op code %u", info);
 }
 
-void
-dbase_undo(XLogRecPtr lsn, XLogRecord *record)
-{
-	elog(PANIC, "dbase_undo: unimplemented");
-}
-
 void
 dbase_desc(char *buf, uint8 xl_info, char *rec)
 {

src/backend/commands/sequence.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/commands/sequence.c,v 1.120 2005/05/27 00:57:49 neilc Exp $
+ *	  $PostgreSQL: pgsql/src/backend/commands/sequence.c,v 1.121 2005/06/06 17:01:23 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1077,7 +1077,7 @@ seq_redo(XLogRecPtr lsn, XLogRecord *record)
 	if (info != XLOG_SEQ_LOG)
 		elog(PANIC, "seq_redo: unknown op code %u", info);
 
-	reln = XLogOpenRelation(true, RM_SEQ_ID, xlrec->node);
+	reln = XLogOpenRelation(xlrec->node);
 	if (!RelationIsValid(reln))
 		return;
 
@@ -1107,11 +1107,6 @@ seq_redo(XLogRecPtr lsn, XLogRecord *record)
 	WriteBuffer(buffer);
 }
 
-void
-seq_undo(XLogRecPtr lsn, XLogRecord *record)
-{
-}
-
 void
 seq_desc(char *buf, uint8 xl_info, char *rec)
 {

src/backend/commands/tablespace.c

@@ -37,7 +37,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/commands/tablespace.c,v 1.19 2005/05/10 22:27:29 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/commands/tablespace.c,v 1.20 2005/06/06 17:01:23 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1064,12 +1064,6 @@ tblspc_redo(XLogRecPtr lsn, XLogRecord *record)
 		elog(PANIC, "tblspc_redo: unknown op code %u", info);
 }
 
-void
-tblspc_undo(XLogRecPtr lsn, XLogRecord *record)
-{
-	elog(PANIC, "tblspc_undo: unimplemented");
-}
-
 void
 tblspc_desc(char *buf, uint8 xl_info, char *rec)
 {

src/backend/storage/smgr/smgr.c

@@ -11,7 +11,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/storage/smgr/smgr.c,v 1.87 2005/05/29 04:23:05 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/storage/smgr/smgr.c,v 1.88 2005/06/06 17:01:24 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -908,13 +908,6 @@ smgr_redo(XLogRecPtr lsn, XLogRecord *record)
 		elog(PANIC, "smgr_redo: unknown op code %u", info);
 }
 
-void
-smgr_undo(XLogRecPtr lsn, XLogRecord *record)
-{
-	/* Since we have no transactional WAL entries, should never undo */
-	elog(PANIC, "smgr_undo: cannot undo");
-}
-
 void
 smgr_desc(char *buf, uint8 xl_info, char *rec)
 {

src/backend/utils/init/flatfiles.c

@@ -22,7 +22,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/backend/utils/init/flatfiles.c,v 1.6 2005/04/14 20:03:26 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/utils/init/flatfiles.c,v 1.7 2005/06/06 17:01:24 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -645,7 +645,7 @@ BuildFlatFiles(bool database_only)
 	rnode.relNode = DatabaseRelationId;
 
 	/* No locking is needed because no one else is alive yet */
-	rel = XLogOpenRelation(true, 0, rnode);
+	rel = XLogOpenRelation(rnode);
 	write_database_file(rel);
 
 	if (!database_only)
@@ -655,7 +655,7 @@ BuildFlatFiles(bool database_only)
 		rnode.dbNode = 0;
 		rnode.relNode = GroupRelationId;
 
-		rel = XLogOpenRelation(true, 0, rnode);
+		rel = XLogOpenRelation(rnode);
 		write_group_file(rel);
 
 		/* hard-wired path to pg_shadow */
@@ -663,7 +663,7 @@ BuildFlatFiles(bool database_only)
 		rnode.dbNode = 0;
 		rnode.relNode = ShadowRelationId;
 
-		rel = XLogOpenRelation(true, 0, rnode);
+		rel = XLogOpenRelation(rnode);
 		write_user_file(rel);
 	}
 

src/include/access/clog.h

@@ -6,7 +6,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/clog.h,v 1.12 2004/12/31 22:03:21 pgsql Exp $
+ * $PostgreSQL: pgsql/src/include/access/clog.h,v 1.13 2005/06/06 17:01:24 tgl Exp $
  */
 #ifndef CLOG_H
 #define CLOG_H
@@ -44,7 +44,6 @@ extern void TruncateCLOG(TransactionId oldestXact);
 #define CLOG_ZEROPAGE		0x00
 
 extern void clog_redo(XLogRecPtr lsn, XLogRecord *record);
-extern void clog_undo(XLogRecPtr lsn, XLogRecord *record);
 extern void clog_desc(char *buf, uint8 xl_info, char *rec);
 
 #endif   /* CLOG_H */

src/include/access/gist_private.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/gist_private.h,v 1.1 2005/05/17 03:34:18 neilc Exp $
+ * $PostgreSQL: pgsql/src/include/access/gist_private.h,v 1.2 2005/06/06 17:01:24 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -99,8 +99,8 @@ extern void freeGISTstate(GISTSTATE *giststate);
 extern void gistdentryinit(GISTSTATE *giststate, int nkey, GISTENTRY *e,
 			   Datum k, Relation r, Page pg, OffsetNumber o,
 			   int b, bool l, bool isNull);
+
 extern void gist_redo(XLogRecPtr lsn, XLogRecord *record);
-extern void gist_undo(XLogRecPtr lsn, XLogRecord *record);
 extern void gist_desc(char *buf, uint8 xl_info, char *rec);
 
 /* gistget.c */

src/include/access/hash.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/hash.h,v 1.61 2005/03/27 23:53:04 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/access/hash.h,v 1.62 2005/06/06 17:01:24 tgl Exp $
  *
  * NOTES
  *		modeled after Margo Seltzer's hash implementation for unix.
@@ -314,7 +314,6 @@ extern void _hash_checkpage(Relation rel, Page page, int flags);
 
 /* hash.c */
 extern void hash_redo(XLogRecPtr lsn, XLogRecord *record);
-extern void hash_undo(XLogRecPtr lsn, XLogRecord *record);
 extern void hash_desc(char *buf, uint8 xl_info, char *rec);
 
 #endif   /* HASH_H */

src/include/access/heapam.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/heapam.h,v 1.100 2005/04/28 21:47:16 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/access/heapam.h,v 1.101 2005/06/06 17:01:24 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -173,7 +173,6 @@ extern void heap_markpos(HeapScanDesc scan);
 extern void heap_restrpos(HeapScanDesc scan);
 
 extern void heap_redo(XLogRecPtr lsn, XLogRecord *rptr);
-extern void heap_undo(XLogRecPtr lsn, XLogRecord *rptr);
 extern void heap_desc(char *buf, uint8 xl_info, char *rec);
 extern XLogRecPtr log_heap_clean(Relation reln, Buffer buffer,
 			   OffsetNumber *unused, int uncnt);

src/include/access/nbtree.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/nbtree.h,v 1.85 2005/03/27 23:53:04 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/access/nbtree.h,v 1.86 2005/06/06 17:01:24 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -485,7 +485,6 @@ extern void _bt_leafbuild(BTSpool *btspool, BTSpool *spool2);
  * prototypes for functions in nbtxlog.c
  */
 extern void btree_redo(XLogRecPtr lsn, XLogRecord *record);
-extern void btree_undo(XLogRecPtr lsn, XLogRecord *record);
 extern void btree_desc(char *buf, uint8 xl_info, char *rec);
 extern void btree_xlog_startup(void);
 extern void btree_xlog_cleanup(void);

src/include/access/rmgr.h

@@ -3,7 +3,7 @@
  *
  * Resource managers definition
  *
- * $PostgreSQL: pgsql/src/include/access/rmgr.h,v 1.13 2004/08/29 21:08:47 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/access/rmgr.h,v 1.14 2005/06/06 17:01:24 tgl Exp $
  */
 #ifndef RMGR_H
 #define RMGR_H
@@ -19,6 +19,7 @@ typedef uint8 RmgrId;
 #define RM_CLOG_ID				3
 #define RM_DBASE_ID				4
 #define RM_TBLSPC_ID			5
+#define RM_MULTIXACT_ID			6
 #define RM_HEAP_ID				10
 #define RM_BTREE_ID				11
 #define RM_HASH_ID				12

src/include/access/rtree.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/rtree.h,v 1.38 2005/03/27 23:53:04 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/access/rtree.h,v 1.39 2005/06/06 17:01:24 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -127,7 +127,6 @@ extern Datum rtbuild(PG_FUNCTION_ARGS);
 extern void _rtdump(Relation r);
 
 extern void rtree_redo(XLogRecPtr lsn, XLogRecord *record);
-extern void rtree_undo(XLogRecPtr lsn, XLogRecord *record);
 extern void rtree_desc(char *buf, uint8 xl_info, char *rec);
 
 /* rtscan.c */

src/include/access/xact.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/xact.h,v 1.75 2005/03/28 01:50:34 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/access/xact.h,v 1.76 2005/06/06 17:01:24 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -146,7 +146,6 @@ extern void RecordTransactionCommit(void);
 extern int	xactGetCommittedChildren(TransactionId **ptr);
 
 extern void xact_redo(XLogRecPtr lsn, XLogRecord *record);
-extern void xact_undo(XLogRecPtr lsn, XLogRecord *record);
 extern void xact_desc(char *buf, uint8 xl_info, char *rec);
 
 #endif   /* XACT_H */

src/include/access/xlog.h

@@ -6,7 +6,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/xlog.h,v 1.62 2005/06/02 05:55:29 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/access/xlog.h,v 1.63 2005/06/06 17:01:24 tgl Exp $
  */
 #ifndef XLOG_H
 #define XLOG_H
@@ -135,7 +135,6 @@ extern XLogRecPtr XLogInsert(RmgrId rmid, uint8 info, XLogRecData *rdata);
 extern void XLogFlush(XLogRecPtr RecPtr);
 
 extern void xlog_redo(XLogRecPtr lsn, XLogRecord *record);
-extern void xlog_undo(XLogRecPtr lsn, XLogRecord *record);
 extern void xlog_desc(char *buf, uint8 xl_info, char *rec);
 
 extern void UpdateControlFile(void);

src/include/access/xlog_internal.h

@@ -5,13 +5,13 @@
  *
  * NOTE: this file is intended to contain declarations useful for
  * manipulating the XLOG files directly, but it is not supposed to be
- * needed by rmgr routines (redo/undo support for individual record types).
+ * needed by rmgr routines (redo support for individual record types).
  * So the XLogRecord typedef and associated stuff appear in xlog.h.
  *
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/xlog_internal.h,v 1.7 2005/06/02 05:55:29 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/access/xlog_internal.h,v 1.8 2005/06/06 17:01:25 tgl Exp $
  */
 #ifndef XLOG_INTERNAL_H
 #define XLOG_INTERNAL_H
@@ -224,7 +224,6 @@ typedef struct RmgrData
 {
 	const char *rm_name;
 	void		(*rm_redo) (XLogRecPtr lsn, XLogRecord *rptr);
-	void		(*rm_undo) (XLogRecPtr lsn, XLogRecord *rptr);
 	void		(*rm_desc) (char *buf, uint8 xl_info, char *rec);
 	void		(*rm_startup) (void);
 	void		(*rm_cleanup) (void);

src/include/access/xlogutils.h

@@ -6,12 +6,11 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/xlogutils.h,v 1.17 2004/12/31 22:03:21 pgsql Exp $
+ * $PostgreSQL: pgsql/src/include/access/xlogutils.h,v 1.18 2005/06/06 17:01:25 tgl Exp $
  */
 #ifndef XLOG_UTILS_H
 #define XLOG_UTILS_H
 
-#include "access/rmgr.h"
 #include "storage/buf.h"
 #include "utils/rel.h"
 
@@ -19,7 +18,7 @@
 extern void XLogInitRelationCache(void);
 extern void XLogCloseRelationCache(void);
 
-extern Relation XLogOpenRelation(bool redo, RmgrId rmid, RelFileNode rnode);
+extern Relation XLogOpenRelation(RelFileNode rnode);
 extern void XLogCloseRelation(RelFileNode rnode);
 
 extern Buffer XLogReadBuffer(bool extend, Relation reln, BlockNumber blkno);

src/include/commands/dbcommands.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/commands/dbcommands.h,v 1.37 2005/03/23 00:03:37 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/commands/dbcommands.h,v 1.38 2005/06/06 17:01:25 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -71,7 +71,6 @@ extern Oid	get_database_oid(const char *dbname);
 extern char *get_database_name(Oid dbid);
 
 extern void dbase_redo(XLogRecPtr lsn, XLogRecord *rptr);
-extern void dbase_undo(XLogRecPtr lsn, XLogRecord *rptr);
 extern void dbase_desc(char *buf, uint8 xl_info, char *rec);
 
 #endif   /* DBCOMMANDS_H */

src/include/commands/sequence.h

@@ -6,7 +6,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/commands/sequence.h,v 1.30 2004/12/31 22:03:28 pgsql Exp $
+ * $PostgreSQL: pgsql/src/include/commands/sequence.h,v 1.31 2005/06/06 17:01:25 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -89,7 +89,6 @@ extern void DefineSequence(CreateSeqStmt *stmt);
 extern void AlterSequence(AlterSeqStmt *stmt);
 
 extern void seq_redo(XLogRecPtr lsn, XLogRecord *rptr);
-extern void seq_undo(XLogRecPtr lsn, XLogRecord *rptr);
 extern void seq_desc(char *buf, uint8 xl_info, char *rec);
 
 /* Set the upper and lower bounds of a sequence */

src/include/commands/tablespace.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/commands/tablespace.h,v 1.8 2004/12/31 22:03:28 pgsql Exp $
+ * $PostgreSQL: pgsql/src/include/commands/tablespace.h,v 1.9 2005/06/06 17:01:25 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -48,7 +48,6 @@ extern char *get_tablespace_name(Oid spc_oid);
 extern bool directory_is_empty(const char *path);
 
 extern void tblspc_redo(XLogRecPtr lsn, XLogRecord *rptr);
-extern void tblspc_undo(XLogRecPtr lsn, XLogRecord *rptr);
 extern void tblspc_desc(char *buf, uint8 xl_info, char *rec);
 
 #endif   /* TABLESPACE_H */

src/include/storage/smgr.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/storage/smgr.h,v 1.50 2005/01/10 20:02:23 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/storage/smgr.h,v 1.51 2005/06/06 17:01:25 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -84,7 +84,6 @@ extern void smgrabort(void);
 extern void smgrsync(void);
 
 extern void smgr_redo(XLogRecPtr lsn, XLogRecord *record);
-extern void smgr_undo(XLogRecPtr lsn, XLogRecord *record);
 extern void smgr_desc(char *buf, uint8 xl_info, char *rec);