QUERY PLAN
GroupAggregate (cost=566.56..566.69 rows=6 width=44)
Group Key: c.project_id
-> Sort (cost=566.56..566.57 rows=6 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=521.67..566.48 rows=6 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=416.88..416.88 rows=6 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..416.88 rows=6 width=8)
Filter: ((case_type = 1) AND (project_id = ANY ('{4184,4182,4183,4181,4173,4171,4152,4150,4158,2939,4179,4175}'::integer[])))