diff --git a/src/backend/optimizer/plan/planner.c b/src/backend/optimizer/plan/planner.c
index a3cc274..4f8e4c0 100644
--- a/src/backend/optimizer/plan/planner.c
+++ b/src/backend/optimizer/plan/planner.c
@@ -653,13 +653,19 @@ subquery_planner(PlannerGlobal *glob, Query *parse,
 	 * In some cases we may want to transfer a HAVING clause into WHERE. We
 	 * cannot do so if the HAVING clause contains aggregates (obviously) or
 	 * volatile functions (since a HAVING clause is supposed to be executed
-	 * only once per group).  Also, it may be that the clause is so expensive
-	 * to execute that we're better off doing it only once per group, despite
-	 * the loss of selectivity.  This is hard to estimate short of doing the
-	 * entire planning process twice, so we use a heuristic: clauses
-	 * containing subplans are left in HAVING.  Otherwise, we move or copy the
-	 * HAVING clause into WHERE, in hopes of eliminating tuples before
-	 * aggregation instead of after.
+	 * only once per group).  We also can't do this if there are any nonempty
+	 * grouping sets; moving such a clause into WHERE would potentially change
+	 * the results, if any referenced column isn't present in all the grouping
+	 * sets.  (If there are only empty grouping sets, then the HAVING clause
+	 * must be degenerate as discussed below.)
+	 *
+	 * Also, it may be that the clause is so expensive to execute that we're
+	 * better off doing it only once per group, despite the loss of
+	 * selectivity.  This is hard to estimate short of doing the entire
+	 * planning process twice, so we use a heuristic: clauses containing
+	 * subplans are left in HAVING.  Otherwise, we move or copy the HAVING
+	 * clause into WHERE, in hopes of eliminating tuples before aggregation
+	 * instead of after.
 	 *
 	 * If the query has explicit grouping then we can simply move such a
 	 * clause into WHERE; any group that fails the clause will not be in the
@@ -679,7 +685,8 @@ subquery_planner(PlannerGlobal *glob, Query *parse,
 	{
 		Node	   *havingclause = (Node *) lfirst(l);
 
-		if (contain_agg_clause(havingclause) ||
+		if ((parse->groupClause && parse->groupingSets) ||
+			contain_agg_clause(havingclause) ||
 			contain_volatile_functions(havingclause) ||
 			contain_subplans(havingclause))
 		{
diff --git a/src/test/regress/expected/groupingsets.out b/src/test/regress/expected/groupingsets.out
index b0b8c4b..42425a5 100644
--- a/src/test/regress/expected/groupingsets.out
+++ b/src/test/regress/expected/groupingsets.out
@@ -607,6 +607,60 @@ having exists (select 1 from onek b where sum(distinct a.four) = b.four);
    9 |   3
 (25 rows)
 
+-- Pushdown of HAVING issues
+select a,count(*) from gstest2 group by rollup(a) order by a;
+ a | count 
+---+-------
+ 1 |     8
+ 2 |     1
+   |     9
+(3 rows)
+
+select a,count(*) from gstest2 group by rollup(a) having a is distinct from 1 order by a;
+ a | count 
+---+-------
+ 2 |     1
+   |     9
+(2 rows)
+
+explain (costs off)
+  select a,count(*) from gstest2 group by rollup(a) having a is distinct from 1 order by a;
+            QUERY PLAN            
+----------------------------------
+ GroupAggregate
+   Group Key: a
+   Group Key: ()
+   Filter: (a IS DISTINCT FROM 1)
+   ->  Sort
+         Sort Key: a
+         ->  Seq Scan on gstest2
+(7 rows)
+
+select v.c, (select count(*) from gstest2 group by () having v.c)
+  from (values (false),(true)) v(c) order by v.c;
+ c | count 
+---+-------
+ f |      
+ t |     9
+(2 rows)
+
+explain (costs off)
+  select v.c, (select count(*) from gstest2 group by () having v.c)
+    from (values (false),(true)) v(c) order by v.c;
+                        QUERY PLAN                         
+-----------------------------------------------------------
+ Sort
+   Sort Key: "*VALUES*".column1
+   ->  Values Scan on "*VALUES*"
+         SubPlan 1
+           ->  Aggregate
+                 Group Key: ()
+                 Filter: "*VALUES*".column1
+                 ->  Result
+                       One-Time Filter: "*VALUES*".column1
+                       ->  Seq Scan on gstest2
+(10 rows)
+
 -- HAVING with GROUPING queries
 select ten, grouping(ten) from onek
 group by grouping sets(ten) having grouping(ten) >= 0
diff --git a/src/test/regress/sql/groupingsets.sql b/src/test/regress/sql/groupingsets.sql
index bff85d0..0b3b1c4 100644
--- a/src/test/regress/sql/groupingsets.sql
+++ b/src/test/regress/sql/groupingsets.sql
@@ -183,6 +183,18 @@ select ten, sum(distinct four) from onek a
 group by grouping sets((ten,four),(ten))
 having exists (select 1 from onek b where sum(distinct a.four) = b.four);
 
+-- Pushdown of HAVING issues
+select a,count(*) from gstest2 group by rollup(a) order by a;
+select a,count(*) from gstest2 group by rollup(a) having a is distinct from 1 order by a;
+explain (costs off)
+  select a,count(*) from gstest2 group by rollup(a) having a is distinct from 1 order by a;
+
+select v.c, (select count(*) from gstest2 group by () having v.c)
+  from (values (false),(true)) v(c) order by v.c;
+explain (costs off)
+  select v.c, (select count(*) from gstest2 group by () having v.c)
+    from (values (false),(true)) v(c) order by v.c;
+
 -- HAVING with GROUPING queries
 select ten, grouping(ten) from onek
 group by grouping sets(ten) having grouping(ten) >= 0