Programming, Alibaba Cloud, Database, Postgresql, Data Analytics.
状态上传时间 ); 2. Index create index idx_sensor_stat_1 on sensor_stat(sid, crt_time desc); Write 110.1 million test data records (assuming this is the data write volume for 1 hour, then 2642.4 million records are written throughout the day) and 1,001 sensor IDs. insert into sensor_stat select