QUERY PLAN
HashAggregate (cost=998.54..1001.50 rows=237 width=44)
Group Key: c.client_id
-> Hash Right Join (cost=810.34..995.97 rows=343 width=20)
Hash Cond: (tbl_implement_records.case_id = c.id)
-> HashAggregate (cost=410.53..511.32 rows=6719 width=20)
Group Key: tbl_implement_records.case_id
-> Seq Scan on tbl_implement_records (cost=0.00..340.29 rows=7024 width=24)
Filter: (NOT is_draft)
-> Hash (cost=395.52..395.52 rows=343 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..395.52 rows=343 width=8)
Filter: ((case_type = 2) AND (client_id = ANY ('{3354,399,2616,2538,146,1661,982,2166,1301,3330}'::integer[])))