QUERY PLAN
GroupAggregate (cost=1056.15..1056.92 rows=34 width=44)
Group Key: c.project_id
-> Sort (cost=1056.15..1056.23 rows=35 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=869.65..1055.25 rows=35 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=458.70..458.70 rows=35 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..458.70 rows=35 width=8)
Filter: ((case_type = 2) AND (project_id = ANY ('{4174,4173,4172,4170,4169,4167,4166,4161,4164,4157,4155,4142,4127,4098,4111,4096}'::integer[])))