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 ('{4130,4124,4121,4103,4119,4094,4111,4101,4100,4102}'::integer[]))