QUERY PLAN
GroupAggregate (cost=482.02..483.17 rows=65 width=12)
Group Key: project_id
-> Sort (cost=482.02..482.19 rows=67 width=8)
Sort Key: project_id
-> Seq Scan on tbl_cases (cost=0.00..479.99 rows=67 width=8)
Filter: (project_id = ANY ('{3019,3027,2939,2893,2907,2759,2684,2695,2530,2508,2507,2504,2459,2458,2422,2080,2079,1983,1963,1938}'::integer[]))