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 ('{3819,3805,3814,3822,3817,3811,3821,3818,3816,3798,3695,3232,3813,3812,3810,3809,3808,3807,3804,3806}'::integer[]))