QUERY PLAN
GroupAggregate (cost=1057.53..1058.53 rows=44 width=44)
Group Key: c.project_id
-> Sort (cost=1057.53..1057.65 rows=45 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=870.67..1056.30 rows=45 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=459.58..459.58 rows=45 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..459.58 rows=45 width=8)
Filter: ((case_type = 2) AND (project_id = ANY ('{4139,4059,3956,3849,3919,3882,3917,3883,3898,3745,3538,3301,3105,3049,2831,2851}'::integer[])))