QUERY PLAN
GroupAggregate (cost=636.73..636.83 rows=5 width=36)
Group Key: c.project_id
-> Sort (cost=636.73..636.74 rows=5 width=36)
Sort Key: c.project_id
-> Hash Right Join (cost=447.22..636.67 rows=5 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=254.28..254.28 rows=5 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..254.28 rows=5 width=8)
Filter: (project_id = ANY ('{3805,3811}'::integer[]))