QUERY PLAN
GroupAggregate (cost=799.42..799.55 rows=6 width=44)
Group Key: c.project_id
-> Sort (cost=799.42..799.43 rows=6 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=637.17..799.34 rows=6 width=20)
Hash Cond: (tbl_implement_records.case_id = c.id)
-> HashAggregate (cost=354.54..442.59 rows=5870 width=20)
Group Key: tbl_implement_records.case_id
-> Seq Scan on tbl_implement_records (cost=0.00..292.78 rows=6176 width=24)
Filter: (NOT is_draft)
-> Hash (cost=282.56..282.56 rows=6 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..282.56 rows=6 width=8)
Filter: ((case_type = 2) AND (project_id = ANY ('{3805,3814,3811}'::integer[])))