From 4a5d55ec2b711e13438a32d119a809a22ced410b Mon Sep 17 00:00:00 2001
From: Heikki Linnakangas <heikki.linnakangas@iki.fi>
Date: Tue, 22 Apr 2014 22:40:44 +0300
Subject: [PATCH] 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.
---
 src/backend/access/nbtree/nbtinsert.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/backend/access/nbtree/nbtinsert.c b/src/backend/access/nbtree/nbtinsert.c
index 922412eef1..48cb809a0f 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);
 	}
-- 
2.40.0