QUERY PLAN
GroupAggregate (cost=651.03..651.37 rows=15 width=44)
Group Key: c.project_id
-> Sort (cost=651.03..651.07 rows=15 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=606.04..650.74 rows=15 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=501.27..501.27 rows=15 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..501.27 rows=15 width=8)
Filter: ((case_type = 1) AND (project_id = ANY ('{4087,4086,3923,4077,4084,4070,4067,4007,4065,4076,4066,4072,4058,4026,4017,3955,4068,4075,4074,4073}'::integer[])))