diff --git a/src/test/regress/sql/stats_ext.sql b/src/test/regress/sql/stats_ext.sql
index 46acaad..1082660 100644
*** a/src/test/regress/sql/stats_ext.sql
--- b/src/test/regress/sql/stats_ext.sql
*************** EXPLAIN (COSTS off)
*** 177,184 ****
  EXPLAIN (COSTS off)
   SELECT COUNT(*) FROM ndistinct GROUP BY a, b, c, d;
  
! EXPLAIN (COSTS off)
   SELECT COUNT(*) FROM ndistinct GROUP BY b, c, d;
  
  EXPLAIN (COSTS off)
   SELECT COUNT(*) FROM ndistinct GROUP BY a, d;
--- 177,188 ----
  EXPLAIN (COSTS off)
   SELECT COUNT(*) FROM ndistinct GROUP BY a, b, c, d;
  
! EXPLAIN --(COSTS off)
!  SELECT COUNT(*) FROM ndistinct GROUP BY b, c, d;
! set enable_hashagg = 0;
! EXPLAIN --(COSTS off)
   SELECT COUNT(*) FROM ndistinct GROUP BY b, c, d;
+ reset enable_hashagg;
  
  EXPLAIN (COSTS off)
   SELECT COUNT(*) FROM ndistinct GROUP BY a, d;