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Posted to dev@iotdb.apache.org by "xiangdong Huang (Jira)" <ji...@apache.org> on 2019/10/10 03:20:00 UTC

[jira] [Closed] (IOTDB-88) Support more precise time unit (microsecond or nanosecond)

     [ https://issues.apache.org/jira/browse/IOTDB-88?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

xiangdong Huang closed IOTDB-88.
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> Support more precise time unit (microsecond or nanosecond)
> ----------------------------------------------------------
>
>                 Key: IOTDB-88
>                 URL: https://issues.apache.org/jira/browse/IOTDB-88
>             Project: Apache IoTDB
>          Issue Type: Task
>            Reporter: xiangdong Huang
>            Priority: Major
>
> When Haier Group (a very famous manufacturer in China) uses IoTDB, they find the precision of the  timestamp  is not sufficient. In their production line, the precision of timestamp is 0.1 microsecond. 
> Now, IoTDB uses long to store timestamp, which is fine for millisecond, microsecond and nanosecond, but IoTDB just parse a long timestamp as millisecond. So, we can provide a parameter in configuration files to set the time unit of the long value. 
> 3 choices need to be supported: millisecond, microsecond, and nanosecond.
>  



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