From: Heikki Linnakangas <heikki.linnakangas@iki.fi>
Date: Tue, 22 Apr 2014 19:40:44 +0000 (+0300)
Subject: Fix bug in the new B-tree incomplete-split code.
X-Git-Tag: REL9_4_BETA1~132
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4a5d55ec2b711e13438a32d119a809a22ced410b;p=thirdparty%2Fpostgresql.git

Fix bug in the new B-tree incomplete-split code.

Forgot to update LSN of left sibling's page, when creating a new root.
I fixed this for regular insertions and page splits earlier, but missed
new root creation.
---

diff --git a/src/backend/access/nbtree/nbtinsert.c b/src/backend/access/nbtree/nbtinsert.c
index 922412eef15..48cb809a0f5 100644
--- a/src/backend/access/nbtree/nbtinsert.c
+++ b/src/backend/access/nbtree/nbtinsert.c
@@ -2120,6 +2120,7 @@ _bt_newroot(Relation rel, Buffer lbuf, Buffer rbuf)
 
 		recptr = XLogInsert(RM_BTREE_ID, XLOG_BTREE_NEWROOT, rdata);
 
+		PageSetLSN(lpage, recptr);
 		PageSetLSN(rootpage, recptr);
 		PageSetLSN(metapg, recptr);
 	}