QUERY PLAN
GroupAggregate (cost=501.99..504.38 rows=100 width=44)
Group Key: c.client_id
-> Sort (cost=501.99..502.27 rows=114 width=20)
Sort Key: c.client_id
-> Hash Right Join (cost=454.72..498.09 rows=114 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=351.67..351.67 rows=114 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..351.67 rows=114 width=8)
Filter: ((case_type = 1) AND (client_id = ANY ('{982,90,1181,497,287,1207,582,592}'::integer[])))