QUERY PLAN
GroupAggregate (cost=425.38..426.25 rows=49 width=12)
Group Key: project_id
-> Sort (cost=425.38..425.51 rows=50 width=8)
Sort Key: project_id
-> Seq Scan on tbl_cases (cost=0.00..423.97 rows=50 width=8)
Filter: (project_id = ANY ('{3810,3809,3808,3807,3801,3786,3767,3764,3760,3751,3752,3744,3723,3714,3679,3653,3686,3661,3660,3652}'::integer[]))