-- Test pg_prewarm extension
CREATE EXTENSION pg_prewarm;
-- pg_prewarm() should fail if the target relation has no storage.
CREATE TABLE test (c1 int) PARTITION BY RANGE (c1);
SELECT pg_prewarm('test', 'buffer');
ERROR:  relation "test" does not have storage
DETAIL:  This operation is not supported for partitioned tables.
-- Cleanup
DROP TABLE test;
DROP EXTENSION pg_prewarm;