diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 12da0781a0d..1e195398f3f 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/optimizer/path/allpaths.c,v 1.154 2006/10/04 00:29:53 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/optimizer/path/allpaths.c,v 1.154.2.1 2007/01/28 18:50:48 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -383,6 +383,12 @@ set_append_rel_pathlist(PlannerInfo *root, RelOptInfo *rel,
 		}
 	}
 
+	/*
+	 * Set "raw tuples" count equal to "rows" for the appendrel; needed
+	 * because some places assume rel->tuples is valid for any baserel.
+	 */
+	rel->tuples = rel->rows;
+
 	/*
 	 * Finally, build Append path and install it as the only access path for
 	 * the parent rel.	(Note: this is correct even if we have zero or one