QUERY PLAN
GroupAggregate (cost=1060.12..1061.71 rows=70 width=44)
Group Key: c.project_id
-> Sort (cost=1060.12..1060.30 rows=72 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=879.12..1057.89 rows=72 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=483.66..483.66 rows=72 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..483.66 rows=72 width=8)
Filter: ((case_type = 2) 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[])))