QUERY PLAN
Sort (cost=260.91..260.91 rows=1 width=16)
Sort Key: assigned_at DESC
-> Seq Scan on tbl_case_assignments (cost=0.00..260.90 rows=1 width=16)
Filter: ((engineer_id = 1000) AND (assignment_status = 1) AND (case_id = ANY ('{9255,9256,9259,9263}'::integer[])))