QUERY PLAN
GroupAggregate (cost=414.85..459.68 rows=1 width=44)
Group Key: c.project_id
-> Hash Right Join (cost=414.85..459.66 rows=1 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=310.12..310.12 rows=1 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..310.12 rows=1 width=8)
Filter: ((case_type = 1) AND (project_id = 4024))