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 ('{4184,4182,4183,4181,4024,4174,4146,3957,3796,3854,4173,4180,4179,4178,4177,4133,4079,4170,4176,3880}'::integer[]))