QUERY PLAN
GroupAggregate (cost=875.07..876.72 rows=72 width=44)
Group Key: c.project_id
-> Sort (cost=875.07..875.26 rows=75 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=693.96..872.74 rows=75 width=20)
Hash Cond: (tbl_implement_records.case_id = c.id)
-> HashAggregate (cost=394.56..491.62 rows=6471 width=20)
Group Key: tbl_implement_records.case_id
-> Seq Scan on tbl_implement_records (cost=0.00..326.79 rows=6777 width=24)
Filter: (NOT is_draft)
-> Hash (cost=298.46..298.46 rows=75 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..298.46 rows=75 width=8)
Filter: ((project_id = ANY ('{1018,1111}'::integer[])) AND (case_type = 2))