QUERY PLAN
Sort (cost=271.65..271.66 rows=1 width=16)
Sort Key: assigned_at DESC
-> Seq Scan on tbl_case_assignments (cost=0.00..271.64 rows=1 width=16)
Filter: ((engineer_id = 1001) AND (assignment_status = 1) AND (case_id = ANY ('{9267,9266,9265,9264,9263}'::integer[])))