QUERY PLAN
GroupAggregate (cost=545.17..545.29 rows=5 width=44)
Group Key: c.project_id
-> Sort (cost=545.17..545.19 rows=5 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=500.31..545.12 rows=5 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=5 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..395.52 rows=5 width=8)
Filter: ((case_type = 1) AND (project_id = ANY ('{61,183,95,166,291,290,140,330,31,79}'::integer[])))