QUERY PLAN
GroupAggregate (cost=481.58..482.53 rows=54 width=12)
Group Key: project_id
-> Sort (cost=481.58..481.72 rows=55 width=8)
Sort Key: project_id
-> Seq Scan on tbl_cases (cost=0.00..479.99 rows=55 width=8)
Filter: (project_id = ANY ('{4024,4174,4002,4144,4099,4151,4081,4154,4130,4124,4121,4103,4119,4037,3993,3992,3986,3580,4094,4111}'::integer[]))