QUERY PLAN
GroupAggregate (cost=374.81..375.29 rows=27 width=12)
Group Key: project_id
-> Sort (cost=374.81..374.88 rows=27 width=8)
Sort Key: project_id
-> Seq Scan on tbl_cases (cost=0.00..374.17 rows=27 width=8)
Filter: (project_id = ANY ('{4184,4182,4183,4181,4024,4174,4146,3957,3796,3854}'::integer[]))