QUERY PLAN
GroupAggregate (cost=1013.97..1014.55 rows=26 width=44)
Group Key: c.project_id
-> Sort (cost=1013.97..1014.03 rows=26 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=827.73..1013.36 rows=26 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=416.88..416.88 rows=26 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..416.88 rows=26 width=8)
Filter: ((case_type = 2) AND (project_id = ANY ('{4184,4182,4183,4181,4173,4171,4152,4150,4158,2939,4179,4175}'::integer[])))