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 ('{4173,4172,4170,4169,4167,4166,4164,4161,4157,4155,4145,4142,4139,4128,4127,4123,4118,4116,4115,4113}'::integer[]))