QUERY PLAN
GroupAggregate (cost=1100.00..1101.37 rows=60 width=44)
Group Key: c.project_id
-> Sort (cost=1100.00..1100.16 rows=62 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=912.56..1098.16 rows=62 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=62 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..501.27 rows=62 width=8)
Filter: ((case_type = 2) AND (project_id = ANY ('{4087,4086,3923,4077,4084,4070,4067,4007,4065,4076,4066,4072,4058,4026,4017,3955,4068,4075,4074,4073}'::integer[])))