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 ('{2939,3576,3503,3644,3568,3599,3767,1791,3723,3744}'::integer[]))