QUERY PLAN
GroupAggregate (cost=631.11..631.52 rows=18 width=44)
Group Key: c.project_id
-> Sort (cost=631.11..631.16 rows=18 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=586.87..630.74 rows=18 width=20)
Hash Cond: (tbl_pre_sales.case_id = c.id)
-> HashAggregate (cost=102.98..126.80 rows=1588 width=20)
Group Key: tbl_pre_sales.case_id
-> Seq Scan on tbl_pre_sales (cost=0.00..87.00 rows=1598 width=24)
Filter: (NOT is_draft)
-> Hash (cost=483.66..483.66 rows=18 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..483.66 rows=18 width=8)
Filter: ((case_type = 1) AND (project_id = ANY ('{3960,4006,4003,3969,3888,3956,3922,3883,3917,3841,3910,3911,3900,3898,3875,3834,3866,3869,3852,3863}'::integer[])))