QUERY PLAN
GroupAggregate (cost=374.21..374.68 rows=27 width=12)
Group Key: project_id
-> Sort (cost=374.21..374.27 rows=27 width=8)
Sort Key: project_id
-> Seq Scan on tbl_cases (cost=0.00..373.56 rows=27 width=8)
Filter: (project_id = ANY ('{4182,4083,4082,3981,4166,4090,3996,3980,4006,3969}'::integer[]))