Re: Improving show segment info

Posted by Jacky Li on
URL: http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/Improving-show-segment-info-tp91874p91932.html

> 2020年2月17日 下午2:03，akashrn5 <[hidden email]> 写道：
>
> Hi Ajantha,
>
> I think event time comes into picture when the user has the timestamp
> column, like in timeseries. So only in that case, this column makes sense.
>
> Else it won't be there.
>
> @Likun, correct me if my understanding is wrong.
>

Yes, you are right. If the user table has timestamp column that indicate the event time, user can specify it by setting a new table property called ‘event_time’, then carbon will know which column is event time column.

Then we can show it by reading the segment file (after PR3584, we will have minmax info in the segment file)/

>
> Regards,
> Akash R Nilugal
>
>
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