PageAddItem in overwrite mode: must *NOT* check itemid' flag if

OffsetNumber == MaxOffsetNumber + 1 - there may be garbage there!

src/backend/storage/page/bufpage.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/page/bufpage.c,v 1.35 2001/01/24 19:43:08 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/page/bufpage.c,v 1.36 2001/02/06 06:24:00 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -112,6 +112,8 @@ PageAddItem(Page page,
 				elog(NOTICE, "PageAddItem: tried overwrite after maxoff");
 				return InvalidOffsetNumber;
 			}
+			if (offsetNumber < limit)
+			{
 				itemId = &((PageHeader) page)->pd_linp[offsetNumber - 1];
 				if (((*itemId).lp_flags & LP_USED) ||
 					((*itemId).lp_len != 0))
@@ -120,6 +122,7 @@ PageAddItem(Page page,
 					return InvalidOffsetNumber;
 				}
 			}
+		}
 		else
 		{
 			/*