Hi Miao, 1. Currently, Kylin only returns the count in the bitmap, not IDs in it; It should be able to extend. Could you please describe your scenarios? 2. Yes, the Cube API will return each segment of the cube, and each segment has a start date and end date. Please check Kylin's Rest API document.
2017-12-05 18:31 GMT+08:00 崔苗 <[email protected]>: > 1、If there is Bitmap stored in hbase,can we get the distinct user set if > we need to know all the distinct users? > 2、Is there any restuful api could get the cube's > date_time,date_range_start and date_range_end? > > > 在 2017-11-30 18:30:27，ShaoFeng Shi <[email protected]> 写道： > > Hi Miao, > > Kylin use HyperLogLog or Bitmap to persistent the distinct values; You can > get some info from this blog: https://kylin.apache. > org/blog/2016/08/01/count-distinct-in-kylin/ > > 2017-11-30 9:25 GMT+08:00 崔苗 <[email protected]>: > >> Hi, >> we want to get count(distinct user) group by hour/day/week/month/year,now >> we have a problem: >> what's the content of count(distinct user) that kylin keeps,the distinct >> users set or just a count number? If we want to count (distinct user) by >> year,do we need to keep data for a year in hive? >> >> >> > > > -- > Best regards, > > Shaofeng Shi 史少锋 > > > -- Best regards, Shaofeng Shi 史少锋
