# Old manifest: 92128e273bd6b087288df4682774aa91c04a3142
# New manifest: 04cf2873af05d24e9f9d64ea0c0ffb329c383c04
# Summary of changes:
# 
#   patch src/backend/access/heap/heapam.c
#    from 35dbe0979f6da3660c24d7c771c536d1b9654804
#      to f09a58420b1e164abe3acec04f67728fbfc5275f
# 
#   patch src/backend/commands/analyze.c
#    from f45c8a8b8aa9ddea9f11c0ac81766c70459765cf
#      to 6a6d58ea5ad5bbe78e8929d383248d589e55a20d
# 
#   patch src/backend/commands/sequence.c
#    from 3875f769215f8b3cb4688b7d8b404c7c07d0f577
#      to d491c79eb9f33cdafcc6ac477051068eff49a656
# 
#   patch src/backend/commands/trigger.c
#    from 3b939c53de75beddf950261f31b6538c366f6d37
#      to ba6f66c7449a2bb99807e481199ced25f9af79d9
# 
--- src/backend/access/heap/heapam.c
+++ src/backend/access/heap/heapam.c
@@ -191,8 +191,6 @@
 		*buffer = ReleaseAndReadBuffer(*buffer,
 									   relation,
 									   ItemPointerGetBlockNumber(tid));
-		if (!BufferIsValid(*buffer))
-			elog(ERROR, "ReadBuffer failed");
 
 		LockBuffer(*buffer, BUFFER_LOCK_SHARE);
 
@@ -226,8 +224,6 @@
 		*buffer = ReleaseAndReadBuffer(*buffer,
 									   relation,
 									   page);
-		if (!BufferIsValid(*buffer))
-			elog(ERROR, "ReadBuffer failed");
 
 		LockBuffer(*buffer, BUFFER_LOCK_SHARE);
 
@@ -266,8 +264,6 @@
 		*buffer = ReleaseAndReadBuffer(*buffer,
 									   relation,
 									   page);
-		if (!BufferIsValid(*buffer))
-			elog(ERROR, "ReadBuffer failed");
 
 		LockBuffer(*buffer, BUFFER_LOCK_SHARE);
 
@@ -360,8 +358,6 @@
 		*buffer = ReleaseAndReadBuffer(*buffer,
 									   relation,
 									   page);
-		if (!BufferIsValid(*buffer))
-			elog(ERROR, "ReadBuffer failed");
 
 		LockBuffer(*buffer, BUFFER_LOCK_SHARE);
 		dp = (Page) BufferGetPage(*buffer);
@@ -941,11 +939,6 @@
 	buffer = ReleaseAndReadBuffer(*userbuf, relation,
 								  ItemPointerGetBlockNumber(tid));
 
-	if (!BufferIsValid(buffer))
-		elog(ERROR, "ReadBuffer(\"%s\", %lu) failed",
-			 RelationGetRelationName(relation),
-			 (unsigned long) ItemPointerGetBlockNumber(tid));
-
 	/*
 	 * Need share lock on buffer to examine tuple commit status.
 	 */
@@ -1049,14 +1044,7 @@
 	 * get the buffer from the relation descriptor Note that this does a
 	 * buffer pin.
 	 */
-
 	buffer = ReadBuffer(relation, ItemPointerGetBlockNumber(tid));
-
-	if (!BufferIsValid(buffer))
-		elog(ERROR, "ReadBuffer(\"%s\", %lu) failed",
-			 RelationGetRelationName(relation),
-			 (unsigned long) ItemPointerGetBlockNumber(tid));
-
 	LockBuffer(buffer, BUFFER_LOCK_SHARE);
 
 	/*
@@ -1304,10 +1297,6 @@
 	Assert(ItemPointerIsValid(tid));
 
 	buffer = ReadBuffer(relation, ItemPointerGetBlockNumber(tid));
-
-	if (!BufferIsValid(buffer))
-		elog(ERROR, "ReadBuffer failed");
-
 	LockBuffer(buffer, BUFFER_LOCK_EXCLUSIVE);
 
 	dp = (PageHeader) BufferGetPage(buffer);
@@ -1528,8 +1524,6 @@
 	Assert(ItemPointerIsValid(otid));
 
 	buffer = ReadBuffer(relation, ItemPointerGetBlockNumber(otid));
-	if (!BufferIsValid(buffer))
-		elog(ERROR, "ReadBuffer failed");
 	LockBuffer(buffer, BUFFER_LOCK_EXCLUSIVE);
 
 	dp = (PageHeader) BufferGetPage(buffer);
@@ -1863,10 +1861,6 @@
 	int			result;
 
 	*buffer = ReadBuffer(relation, ItemPointerGetBlockNumber(tid));
-
-	if (!BufferIsValid(*buffer))
-		elog(ERROR, "ReadBuffer failed");
-
 	LockBuffer(*buffer, BUFFER_LOCK_EXCLUSIVE);
 
 	dp = (PageHeader) BufferGetPage(*buffer);
--- src/backend/commands/analyze.c
+++ src/backend/commands/analyze.c
@@ -811,8 +811,6 @@
 		 * tuples.
 		 */
 		targbuffer = ReadBuffer(onerel, targblock);
-		if (!BufferIsValid(targbuffer))
-			elog(ERROR, "ReadBuffer failed");
 		LockBuffer(targbuffer, BUFFER_LOCK_SHARE);
 		targpage = BufferGetPage(targbuffer);
 		maxoffset = PageGetMaxOffsetNumber(targpage);
--- src/backend/commands/sequence.c
+++ src/backend/commands/sequence.c
@@ -192,10 +192,6 @@
 	/* Initialize first page of relation with special magic number */
 
 	buf = ReadBuffer(rel, P_NEW);
-
-	if (!BufferIsValid(buf))
-		elog(ERROR, "ReadBuffer failed");
-
 	Assert(BufferGetBlockNumber(buf) == 0);
 
 	page = (PageHeader) BufferGetPage(buf);
@@ -850,9 +846,6 @@
 	Form_pg_sequence seq;
 
 	*buf = ReadBuffer(rel, 0);
-	if (!BufferIsValid(*buf))
-		elog(ERROR, "ReadBuffer failed");
-
 	LockBuffer(*buf, BUFFER_LOCK_EXCLUSIVE);
 
 	page = (PageHeader) BufferGetPage(*buf);
--- src/backend/commands/trigger.c
+++ src/backend/commands/trigger.c
@@ -1625,9 +1625,6 @@
 
 		buffer = ReadBuffer(relation, ItemPointerGetBlockNumber(tid));
 
-		if (!BufferIsValid(buffer))
-			elog(ERROR, "ReadBuffer failed");
-
 		dp = (PageHeader) BufferGetPage(buffer);
 		lp = PageGetItemId(dp, ItemPointerGetOffsetNumber(tid));