QUERY PLAN
GroupAggregate (cost=577.22..577.42 rows=9 width=44)
Group Key: c.project_id
-> Sort (cost=577.22..577.24 rows=9 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=533.71..577.08 rows=9 width=20)
Hash Cond: (tbl_pre_sales.case_id = c.id)
-> HashAggregate (cost=101.62..125.17 rows=1570 width=20)
Group Key: tbl_pre_sales.case_id
-> Seq Scan on tbl_pre_sales (cost=0.00..85.82 rows=1580 width=24)
Filter: (NOT is_draft)
-> Hash (cost=431.98..431.98 rows=9 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..431.98 rows=9 width=8)
Filter: ((case_type = 1) AND (project_id = ANY ('{3959,3927,3950,3949,3751,3899,3890,3886,3872,3857,3855,3816,3786,3767,3764,3760}'::integer[])))