Programming, Alibaba Cloud, Database, Postgresql, Data Analytics.
loops=1001) Output: t1.*, t1.sid, t1.crt_time Buffers: shared hit=5921 -> Index Scan using idx_sensor_stat_1 on public.sensor_stat t1 (cost=0.57..1746916.71 rows=18456430 width=49) (actual time=0.009..0.009 rows=1 loops=1001) Output: t1.*, t1.sid, t1.crt_time Index Cond: (t1.sid >