QUERY PLAN
Unique (cost=3954027.21..3954867.21 rows=112000 width=17)
-> Sort (cost=3954027.21..3954307.21 rows=112000 width=17)
Sort Key: (date(tt.dt)) DESC, (CASE WHEN ((count(cl.alarm_before) <> 0) OR (count(sh.alarm_before) <> 0)) THEN true ELSE false END)
-> GroupAggregate (cost=3889032.38..3942334.76 rows=112000 width=17)
Group Key: tt.dt, cl.id
-> Sort (cost=3889032.38..3899300.86 rows=4107390 width=44)
Sort Key: tt.dt, cl.id
-> Nested Loop Left Join (cost=5.46..3185132.89 rows=4107390 width=44)
Join Filter: ((((((date(tt.dt))::text || ' 00:00:00'::text))::timestamp without time zone >= cl.start_at) AND ((((date(tt.dt))::text || ' 23:59:59'::text))::timestamp without time zone <= cl.end_at)) OR (((((date(tt.dt))::text || ' 00:00:00'::text))::timestamp without time zone <= cl.start_at) AND ((((date(tt.dt))::text || ' 23:59:59'::text))::timestamp without time zone >= cl.start_at)) OR (((((date(tt.dt))::text || ' 00:00:00'::text))::timestamp without time zone <= cl.end_at) AND ((((date(tt.dt))::text || ' 23:59:59'::text))::timestamp without time zone >= cl.end_at)))
Filter: (((cl.start_at - cl.alarm_before) > '2025-06-27 04:16:33+08'::timestamp with time zone) OR ((sh.start_at - sh.alarm_before) > '2025-06-27 04:16:33+08'::timestamp with time zone))
-> Nested Loop Left Join (cost=5.46..17817.30 rows=44353 width=32)
Join Filter: ((((((date(tt.dt))::text || ' 00:00:00'::text))::timestamp without time zone >= sh.start_at) AND ((((date(tt.dt))::text || ' 23:59:59'::text))::timestamp without time zone <= sh.end_at)) OR (((((date(tt.dt))::text || ' 00:00:00'::text))::timestamp without time zone <= sh.start_at) AND ((((date(tt.dt))::text || ' 23:59:59'::text))::timestamp without time zone >= sh.start_at)) OR (((((date(tt.dt))::text || ' 00:00:00'::text))::timestamp without time zone <= sh.end_at) AND ((((date(tt.dt))::text || ' 23:59:59'::text))::timestamp without time zone >= sh.end_at)))
-> Function Scan on generate_series tt (cost=0.02..10.02 rows=1000 width=8)
-> Materialize (cost=5.44..300.16 rows=149 width=32)
-> Bitmap Heap Scan on tbl_schedules sh (cost=5.44..299.41 rows=149 width=32)
Recheck Cond: (created_by = 1001)
-> Bitmap Index Scan on tbl_schedules_created_by_idx (cost=0.00..5.40 rows=149 width=0)
Index Cond: (created_by = 1001)
-> Materialize (cost=0.00..512.79 rows=560 width=36)
-> Seq Scan on tbl_calendars cl (cost=0.00..509.99 rows=560 width=36)
Filter: (created_by = 1001)