QUERY PLAN
GroupAggregate (cost=513.11..513.20 rows=4 width=44)
Group Key: c.project_id
-> Sort (cost=513.11..513.12 rows=4 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=468.27..513.07 rows=4 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=363.50..363.50 rows=4 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..363.50 rows=4 width=8)
Filter: ((case_type = 1) AND (project_id = ANY ('{4097,4114,4124,4127,4120,4111,4052}'::integer[])))