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 937bb72aa87ba53201f3d80e3357e8f32462e0e9..d6cd0cb7acd19c9f79e4bd04b5e2ca2aa4296cfe 100644 (file)
--- a/src/backend/access/nbtree/nbtinsert.c
+++ b/src/backend/access/nbtree/nbtinsert.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *   $PostgreSQL: pgsql/src/backend/access/nbtree/nbtinsert.c,v 1.164 2008/01/01 19:45:46 momjian Exp $
+ *   $PostgreSQL: pgsql/src/backend/access/nbtree/nbtinsert.c,v 1.164.2.1 2008/06/11 08:40:32 heikki Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -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);