QUERY PLAN
Aggregate (cost=645.60..645.61 rows=1 width=32)
-> Hash Join (cost=455.97..645.59 rows=1 width=8)
Hash Cond: (ca.case_id = c.id)
-> Seq Scan on tbl_case_assignments ca (cost=0.00..189.55 rows=30 width=12)
Filter: (engineer_id = 1001)
-> Hash (cost=453.83..453.83 rows=171 width=4)
-> Subquery Scan on c (cost=450.41..453.83 rows=171 width=4)
-> HashAggregate (cost=450.41..452.12 rows=171 width=285)
Group Key: c_1.id
-> Hash Right Join (cost=321.18..449.98 rows=171 width=4)
Hash Cond: (cs.case_id = c_1.id)
-> Seq Scan on tbl_case_services cs (cost=0.00..110.12 rows=7112 width=4)
-> Hash (cost=319.04..319.04 rows=171 width=4)
-> Seq Scan on tbl_cases c_1 (cost=0.00..319.04 rows=171 width=4)
Filter: ((closed_at >= '2025-01-01 00:00:00+08'::timestamp with time zone) AND (closed_at <= '2025-12-31 23:59:59+08'::timestamp with time zone) AND (case_type = 1))