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 ('{3805,3814,3811,3798,3695,3232,3813,3812,3810,3809,3808,3807,3804,3806,3461,3787,3778,3803,3702,3797}'::integer[]))