QUERY PLAN
GroupAggregate (cost=583.25..583.47 rows=10 width=44)
Group Key: c.project_id
-> Sort (cost=583.25..583.27 rows=10 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=541.37..583.08 rows=10 width=20)
Hash Cond: (tbl_pre_sales.case_id = c.id)
-> HashAggregate (cost=98.42..121.07 rows=1510 width=20)
Group Key: tbl_pre_sales.case_id
-> Seq Scan on tbl_pre_sales (cost=0.00..83.22 rows=1520 width=24)
Filter: (NOT is_draft)
-> Hash (cost=442.82..442.82 rows=10 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..442.82 rows=10 width=8)
Filter: ((case_type = 1) AND (project_id = ANY ('{3809,3808,3807,3804,3806,3461,3796,3801,3800,3793,3794,3792,3791,3769,3789,3788,3786,3782,3771,3785}'::integer[])))