QUERY PLAN
GroupAggregate (cost=464.60..465.52 rows=52 width=12)
Group Key: project_id
-> Sort (cost=464.60..464.74 rows=53 width=8)
Sort Key: project_id
-> Seq Scan on tbl_cases (cost=0.00..463.09 rows=53 width=8)
Filter: (project_id = ANY ('{3744,3723,3714,3679,3653,3686,3661,3660,3652,3644,3633,3599,3591,3590,3589,3577,3576,3568,3552,3544}'::integer[]))