From: Heikki Linnakangas <heikki@enterprisedb.com>
Date: Wed, 11 Jun 2008 08:40:32 +0000 (+0000)
Subject: Fix bug in the WAL recovery code to finish an incomplete split.
X-Git-Url: http://git.postgresql.org/gitweb/static/gitweb.js?a=commitdiff_plain;h=dc724021c392e4bcf0e9d22579c6f80666cd0c91;p=users%2Fbernd%2Fpostgres.git

Fix bug in the WAL recovery code to finish an incomplete split.
CacheInvalidateRelcache() crashes if called in WAL recovery, because the
invalidation infrastructure hasn't been initialized yet.

Back-patch to 8.2, where the bug was introduced.
---

diff --git a/src/backend/access/nbtree/nbtinsert.c b/src/backend/access/nbtree/nbtinsert.c
index 7fb395fc5c..324599716a 100644
--- a/src/backend/access/nbtree/nbtinsert.c
+++ b/src/backend/access/nbtree/nbtinsert.c
@@ -744,7 +744,8 @@ _bt_insertonpg(Relation rel,
 		/* release buffers; send out relcache inval if metapage changed */
 		if (BufferIsValid(metabuf))
 		{
-			CacheInvalidateRelcache(rel);
+			if (!InRecovery)
+				CacheInvalidateRelcache(rel);
 			_bt_relbuf(rel, metabuf);
 		}
 
@@ -1789,7 +1790,8 @@ _bt_newroot(Relation rel, Buffer lbuf, Buffer rbuf)
 	END_CRIT_SECTION();
 
 	/* send out relcache inval for metapage change */
-	CacheInvalidateRelcache(rel);
+	if (!InRecovery)
+		CacheInvalidateRelcache(rel);
 
 	/* done with metapage */
 	_bt_relbuf(rel, metabuf);