QUERY PLAN
GroupAggregate (cost=1014.00..1014.93 rows=41 width=44)
Group Key: c.project_id
-> Sort (cost=1014.00..1014.10 rows=42 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=841.77..1012.86 rows=42 width=20)
Hash Cond: (tbl_implement_records.case_id = c.id)
-> HashAggregate (cost=376.02..468.91 rows=6193 width=20)
Group Key: tbl_implement_records.case_id
-> Seq Scan on tbl_implement_records (cost=0.00..311.03 rows=6499 width=24)
Filter: (NOT is_draft)
-> Hash (cost=465.22..465.22 rows=42 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..465.22 rows=42 width=8)
Filter: ((case_type = 2) AND (project_id = ANY ('{3927,3751,3899,3890,3886,3872,3857,3855,3816,3813,3786,3767,3764,3760,3752,3744,3723,3714,3679,3653}'::integer[])))