QUERY PLAN
GroupAggregate (cost=1013.22..1013.83 rows=27 width=44)
Group Key: c.project_id
-> Sort (cost=1013.22..1013.29 rows=27 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=826.98..1012.58 rows=27 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=416.13..416.13 rows=27 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..416.13 rows=27 width=8)
Filter: ((case_type = 2) AND (project_id = ANY ('{4184,4182,4183,4181,4173,4171,4152,4150,4158,2939,4179,4175}'::integer[])))