Fix multi-column index scans in internal pages.

diff --git a/src/backend/access/nbtree/nbtsearch.c b/src/backend/access/nbtree/nbtsearch.c
index 7b7a4ee..39a18cc 100644 (file)
--- a/src/backend/access/nbtree/nbtsearch.c
+++ b/src/backend/access/nbtree/nbtsearch.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtsearch.c,v 1.26 1997/09/08 20:54:27 momjian Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtsearch.c,v 1.27 1997/10/22 19:02:52 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -197,8 +197,12 @@ _bt_moveright(Relation rel,
                         * if number of attrs > keysize. Example: (2,0) - last items
                         * on this page, (2,1) - first item on next page (hikey), our
                         * scankey is x = 2. Scankey == (2,1) because of we compare
-                        * first attrs only, but we shouldn't to move right of here. -
-                        * vadim 04/15/97
+                        * first attrs only, but we shouldn't to move right of here. 
+                        *                      - vadim 04/15/97
+                        * 
+                        * Also, if this page is not LEAF one (and # of attrs > keysize)
+                        * then we can't move too.
+                        *                      - vadim 10/22/97
                         */
 
                        if (_bt_skeycmp(rel, keysz, scankey, page, hikey,
@@ -227,6 +231,8 @@ _bt_moveright(Relation rel,
                                                        elog(FATAL, "btree: unexpected greater last item");
                                                /* move right */
                                        }
+                                       else if (!(opaque->btpo_flags & BTP_LEAF))
+                                               break;
                                        else if (_bt_skeycmp(rel, keysz, scankey, page,
                                                                                 PageGetItemId(page, offmax),
                                                                                 BTLessEqualStrategyNumber))