QUERY PLAN
GroupAggregate (cost=330.28..330.71 rows=25 width=12)
Group Key: project_id
-> Sort (cost=330.28..330.34 rows=25 width=8)
Sort Key: project_id
-> Seq Scan on tbl_cases (cost=0.00..329.69 rows=25 width=8)
Filter: (project_id = ANY ('{3805,3811,3798,3695,3232,3812,3810,3809,3808,3807}'::integer[]))