QUERY PLAN
HashAggregate (cost=998.14..1001.17 rows=243 width=44)
Group Key: c.client_id
-> Hash Right Join (cost=809.85..995.44 rows=359 width=20)
Hash Cond: (tbl_implement_records.case_id = c.id)
-> HashAggregate (cost=410.51..511.28 rows=6718 width=20)
Group Key: tbl_implement_records.case_id
-> Seq Scan on tbl_implement_records (cost=0.00..340.28 rows=7023 width=24)
Filter: (NOT is_draft)
-> Hash (cost=394.85..394.85 rows=359 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..394.85 rows=359 width=8)
Filter: ((case_type = 2) AND (client_id = ANY ('{399,2616,2538,146,1661,982,2166,1301,3330,2182}'::integer[])))