QUERY PLAN
GroupAggregate (cost=460.08..460.93 rows=48 width=12)
Group Key: project_id
-> Sort (cost=460.08..460.20 rows=49 width=8)
Sort Key: project_id
-> Seq Scan on tbl_cases (cost=0.00..458.70 rows=49 width=8)
Filter: (project_id = ANY ('{4173,4172,4170,4169,4167,4166,4164,4161,4157,4155,4142,4127,4098,4096,4079,4078,3950,3751}'::integer[]))