aboutsummaryrefslogtreecommitdiff
path: root/src/backend/storage/buffer/bufmgr.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/backend/storage/buffer/bufmgr.c')
-rw-r--r--src/backend/storage/buffer/bufmgr.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c
index 6243f2481e4..9cd9ed2112c 100644
--- a/src/backend/storage/buffer/bufmgr.c
+++ b/src/backend/storage/buffer/bufmgr.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/storage/buffer/bufmgr.c,v 1.193 2005/08/12 05:05:50 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/storage/buffer/bufmgr.c,v 1.194 2005/08/12 21:42:53 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -153,6 +153,8 @@ ReadBuffer(Relation reln, BlockNumber blockNum)
* block is not currently in memory.
*/
bufHdr = BufferAlloc(reln, blockNum, &found);
+ /* we are guaranted that nobody else has touched this will-be-new block */
+ Assert(!(found && isExtend));
if (found)
BufferHitCount++;
}