QUERY PLAN
GroupAggregate (cost=610.21..610.46 rows=11 width=44)
Group Key: c.project_id
-> Sort (cost=610.21..610.24 rows=11 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=566.84..610.02 rows=11 width=20)
Hash Cond: (tbl_pre_sales.case_id = c.id)
-> HashAggregate (cost=101.48..124.92 rows=1563 width=20)
Group Key: tbl_pre_sales.case_id
-> Seq Scan on tbl_pre_sales (cost=0.00..85.75 rows=1573 width=24)
Filter: (NOT is_draft)
-> Hash (cost=465.22..465.22 rows=11 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..465.22 rows=11 width=8)
Filter: ((case_type = 1) 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[])))