diff --git a/src/backend/catalog/heap.c b/src/backend/catalog/heap.c
index 5b8fd9bdb92..7203c86c4d4 100644
--- a/src/backend/catalog/heap.c
+++ b/src/backend/catalog/heap.c
@@ -3181,6 +3181,13 @@ heap_truncate_one_rel(Relation rel)
 {
 	Oid			toastrelid;
 
+	/*
+	 * Truncate the relation.  Partitioned tables have no storage, so there is
+	 * nothing to do for them here.
+	 */
+	if (rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
+		return;
+
 	/* Truncate the actual file (and discard buffers) */
 	RelationTruncate(rel, 0);
 
diff --git a/src/test/regress/expected/temp.out b/src/test/regress/expected/temp.out
index addf1ec4443..a769abe9bba 100644
--- a/src/test/regress/expected/temp.out
+++ b/src/test/regress/expected/temp.out
@@ -199,3 +199,20 @@ select pg_temp.whoami();
 (1 row)
 
 drop table public.whereami;
+-- For partitioned temp tables, ON COMMIT actions ignore storage-less
+-- partitioned tables.
+begin;
+create temp table temp_parted_oncommit (a int)
+  partition by list (a) on commit delete rows;
+create temp table temp_parted_oncommit_1
+  partition of temp_parted_oncommit
+  for values in (1) on commit delete rows;
+insert into temp_parted_oncommit values (1);
+commit;
+-- partitions are emptied by the previous commit
+select * from temp_parted_oncommit;
+ a 
+---
+(0 rows)
+
+drop table temp_parted_oncommit;
diff --git a/src/test/regress/sql/temp.sql b/src/test/regress/sql/temp.sql
index 5183c727f5e..1074c7cfac8 100644
--- a/src/test/regress/sql/temp.sql
+++ b/src/test/regress/sql/temp.sql
@@ -151,3 +151,17 @@ select whoami();
 select pg_temp.whoami();
 
 drop table public.whereami;
+
+-- For partitioned temp tables, ON COMMIT actions ignore storage-less
+-- partitioned tables.
+begin;
+create temp table temp_parted_oncommit (a int)
+  partition by list (a) on commit delete rows;
+create temp table temp_parted_oncommit_1
+  partition of temp_parted_oncommit
+  for values in (1) on commit delete rows;
+insert into temp_parted_oncommit values (1);
+commit;
+-- partitions are emptied by the previous commit
+select * from temp_parted_oncommit;
+drop table temp_parted_oncommit;