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 ('{61,183,95,166,291,290,140,330,31,79}'::integer[]))