QUERY PLAN
GroupAggregate (cost=973.67..975.62 rows=85 width=44)
Group Key: c.project_id
-> Sort (cost=973.67..973.89 rows=89 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=785.19..970.78 rows=89 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=373.56..373.56 rows=89 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..373.56 rows=89 width=8)
Filter: ((case_type = 2) AND (project_id = ANY ('{4167,4166,4161,4164,4155,4158,1018,1111}'::integer[])))