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 ('{4174,4173,4162,4148,4143,4097,4082,4060,4034,4002,3981,4172,4171,4170,4169,4168,4167,4166,4144,4141}'::integer[]))