QUERY PLAN
GroupAggregate (cost=955.44..956.22 rows=34 width=44)
Group Key: c.project_id
-> Sort (cost=955.44..955.53 rows=35 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=775.77..954.55 rows=35 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=380.77..380.77 rows=35 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..380.77 rows=35 width=8)
Filter: ((case_type = 2) AND (project_id = ANY ('{2587,3933,3935,3788,3772,3737,3642,3392,3364,3258}'::integer[])))