QUERY PLAN
GroupAggregate (cost=545.57..545.93 rows=16 width=44)
Group Key: c.project_id
-> Sort (cost=545.57..545.61 rows=16 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=500.44..545.25 rows=16 width=20)
Hash Cond: (tbl_pre_sales.case_id = c.id)
-> HashAggregate (cost=104.72..129.05 rows=1622 width=20)
Group Key: tbl_pre_sales.case_id
-> Seq Scan on tbl_pre_sales (cost=0.00..88.37 rows=1635 width=24)
Filter: (NOT is_draft)
-> Hash (cost=395.52..395.52 rows=16 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..395.52 rows=16 width=8)
Filter: ((case_type = 1) AND (project_id = ANY ('{4024,4177,263,2504,1791,1111,4136,4139,4017,3754}'::integer[])))