QUERY PLAN
GroupAggregate (cost=631.14..631.59 rows=20 width=44)
Group Key: c.project_id
-> Sort (cost=631.14..631.19 rows=20 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=585.90..630.71 rows=20 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=480.93..480.93 rows=20 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..480.93 rows=20 width=8)
Filter: ((case_type = 1) AND (project_id = ANY ('{4184,4182,4174,4173,4170,4167,4166,4144,4152,4150,3991,4014,3703,3679,3623,3265,2939,1018}'::integer[])))