QUERY PLAN
Seq Scan on tbl_calendars (cost=0.00..588.81 rows=1 width=177)
Filter: (((system_calendar_id)::text = '8f27be1e-8632-4c3d-8d61-a5d651f7113e_259'::text) AND ((start_at >= '2025-07-18 00:00:00+08'::timestamp with time zone) OR (end_at >= '2025-07-18 00:00:00+08'::timestamp with time zone)))