I use Apache IoTDB to store data today and the dataset has been stored twice because I ran the data again and insert via Flink.
I thought the duplicated data should overwrite each other, but I still find the downloaded csv includes duplicated data. I tried to query these data directly through Cli tool of IoTDB to rule out possible problem of Flink, but the data still come repeated.
How can these duplicated data be eliminated? Or are there any parameters that need to be set?
The query statement I used is:
select gt, spd, angvel, acc from root.safe_etl.hubei.jinmen.jptgsc.**.18.qianxun.84156.gps where time >= 1662347454100 and time <= 166234746410 order by time asc