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 ('{4176,4175,4174,4173,4172,4171,4170,4169,4168,4167,4166,4165,4164,4163,4162,4161,4158,4157,4155,4154}'::integer[]))