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

hlinnaka · hlinnaka · commit 4a5d55ec2b71 · 2014-04-22T22:40:44.000+03:00
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
@@ -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);
 	}

Original file line number	Diff line number	Diff line change
`@@ -2120,6 +2120,7 @@ _bt_newroot(Relation rel, Buffer lbuf, Buffer rbuf)`
`2120`	`2120`
`2121`	`2121`	`recptr = XLogInsert(RM_BTREE_ID, XLOG_BTREE_NEWROOT, rdata);`
`2122`	`2122`
	`2123`	`+ PageSetLSN(lpage, recptr);`
`2123`	`2124`	`PageSetLSN(rootpage, recptr);`
`2124`	`2125`	`PageSetLSN(metapg, recptr);`
`2125`	`2126`	`}`