QUERY PLAN
GroupAggregate (cost=481.58..482.53 rows=54 width=12)
Group Key: project_id
-> Sort (cost=481.58..481.72 rows=55 width=8)
Sort Key: project_id
-> Seq Scan on tbl_cases (cost=0.00..479.99 rows=55 width=8)
Filter: (project_id = ANY ('{4096,4086,4084,4074,4063,4057,4028,3874,3749,3723,3714,3686,3679,3677,3661,3660,3653,3652,3644,3633}'::integer[]))