QUERY PLAN
GroupAggregate (cost=1099.13..1100.11 rows=43 width=44)
Group Key: c.project_id
-> Sort (cost=1099.13..1099.24 rows=44 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=912.33..1097.93 rows=44 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=501.27..501.27 rows=44 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..501.27 rows=44 width=8)
Filter: ((case_type = 2) AND (project_id = ANY ('{4002,4037,3992,3580,4095,4049,4041,4001,3994,3983,3954,4065,4062,3944,3867,3864,3818,3461,3921,3848}'::integer[])))