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 ('{3927,3934,3930,3929,3928,3926,3925,3924,3751,3922,3919,3882,3920,3883,3916,3841,3910,3906,3911,3900}'::integer[])))