QUERY PLAN
GroupAggregate (cost=507.36..722.80 rows=53 width=36)
Group Key: c.project_id
-> Hash Right Join (cost=507.36..721.87 rows=54 width=36)
Hash Cond: (tbl_case_assignments.case_id = c.id)
-> HashAggregate (cost=217.93..324.64 rows=8537 width=36)
Group Key: tbl_case_assignments.case_id
-> Seq Scan on tbl_case_assignments (cost=0.00..174.95 rows=8595 width=12)
-> Hash (cost=288.76..288.76 rows=54 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..288.76 rows=54 width=8)
Filter: (project_id = 1018)