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 ('{4170,4173,4174,4155,4172,4169,4167,4161,4166,4098,4111,4164,4113,4142,4157,4145,4139,4128,4123,4089}'::integer[]))