QUERY PLAN
GroupAggregate (cost=608.24..608.44 rows=9 width=44)
Group Key: c.project_id
-> Sort (cost=608.24..608.26 rows=9 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=563.40..608.09 rows=9 width=20)
Hash Cond: (tbl_pre_sales.case_id = c.id)
-> HashAggregate (cost=104.58..128.85 rows=1618 width=20)
Group Key: tbl_pre_sales.case_id
-> Seq Scan on tbl_pre_sales (cost=0.00..88.30 rows=1628 width=24)
Filter: (NOT is_draft)
-> Hash (cost=458.70..458.70 rows=9 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..458.70 rows=9 width=8)
Filter: ((case_type = 1) AND (project_id = ANY ('{4174,4173,4172,4170,4169,4167,4166,4161,4164,4157,4155,4142,4127,4098,4111,4096}'::integer[])))