QUERY PLAN
GroupAggregate (cost=1099.61..1100.81 rows=53 width=44)
Group Key: c.project_id
-> Sort (cost=1099.61..1099.74 rows=54 width=20)
Sort Key: c.project_id
-> Hash Right Join (cost=912.46..1098.06 rows=54 width=20)
Hash Cond: (tbl_implement_records.case_id = c.id)
-> HashAggregate (cost=410.51..511.28 rows=6718 width=20)
Group Key: tbl_implement_records.case_id
-> Seq Scan on tbl_implement_records (cost=0.00..340.28 rows=7023 width=24)
Filter: (NOT is_draft)
-> Hash (cost=501.27..501.27 rows=54 width=8)
-> Seq Scan on tbl_cases c (cost=0.00..501.27 rows=54 width=8)
Filter: ((case_type = 2) AND (project_id = ANY ('{3019,3027,2939,2893,2907,2759,2684,2695,2530,2508,2507,2504,2459,2458,2422,2080,2079,1983,1963,1938}'::integer[])))