QUERY PLAN
GroupAggregate (cost=674.80..675.10 rows=15 width=36)
Group Key: c.project_id
-> Sort (cost=674.80..674.84 rows=15 width=36)
Sort Key: c.project_id
-> Hash Right Join (cost=485.05..674.51 rows=15 width=36)
Hash Cond: (tbl_case_assignments.case_id = c.id)
-> HashAggregate (cost=192.88..287.13 rows=7540 width=36)
Group Key: tbl_case_assignments.case_id
-> Seq Scan on tbl_case_assignments (cost=0.00..154.92 rows=7592 width=12)
-> Hash (cost=291.99..291.99 rows=15 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..291.99 rows=15 width=8)
Filter: (project_id = ANY ('{3739,3692,3493,3297,3375,110}'::integer[]))