QUERY PLAN
GroupAggregate (cost=476.24..476.31 rows=3 width=44)
Group Key: c.project_id
-> Sort (cost=476.24..476.25 rows=3 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=432.35..476.22 rows=3 width=20)
Hash Cond: (tbl_pre_sales.case_id = c.id)
-> HashAggregate (cost=102.98..126.80 rows=1588 width=20)
Group Key: tbl_pre_sales.case_id
-> Seq Scan on tbl_pre_sales (cost=0.00..87.00 rows=1598 width=24)
Filter: (NOT is_draft)
-> Hash (cost=329.33..329.33 rows=3 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..329.33 rows=3 width=8)
Filter: ((case_type = 1) AND (project_id = ANY ('{3886,3855,3816,3786,3760}'::integer[])))