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From "Lemont (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (KYLIN-3416) Kylin bitmap null pointer exception
Date Tue, 19 Jun 2018 10:07:00 GMT

     [ https://issues.apache.org/jira/browse/KYLIN-3416?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lemont updated KYLIN-3416:
--------------------------
    Description: 
Hi,team:

  Ithink there is a conflict between dimensional aggregation and count distinct.

For example:

select
 floor((1524931200 - biz_time)/(30*86400)),
 count(DISTINCT id) id
 from test
 group by floor((1524931200 - biz_time)/(30*86400))

Caused by: java.lang.NullPointerException
 at org.apache.kylin.measure.bitmap.RoaringBitmapCounter.getMutableBitmap(RoaringBitmapCounter.java:58)
 at org.apache.kylin.measure.bitmap.RoaringBitmapCounter.orWith(RoaringBitmapCounter.java:72)
 at org.apache.kylin.measure.bitmap.BitmapAggregator.aggregate(BitmapAggregator.java:43)
 at org.apache.kylin.measure.bitmap.BitmapDistinctCountAggFunc.add(BitmapDistinctCountAggFunc.java:31)

 

  was:
Hi,team:

  Ithink there is a conflict between floor function and count distinct.

For example:

select
 floor((1524931200 - biz_time)/(30*86400)),
 count(DISTINCT id) id
 from test
 group by floor((1524931200 - biz_time)/(30*86400))

Caused by: java.lang.NullPointerException
 at org.apache.kylin.measure.bitmap.RoaringBitmapCounter.getMutableBitmap(RoaringBitmapCounter.java:58)
 at org.apache.kylin.measure.bitmap.RoaringBitmapCounter.orWith(RoaringBitmapCounter.java:72)
 at org.apache.kylin.measure.bitmap.BitmapAggregator.aggregate(BitmapAggregator.java:43)
 at org.apache.kylin.measure.bitmap.BitmapDistinctCountAggFunc.add(BitmapDistinctCountAggFunc.java:31)

 


> Kylin bitmap null pointer exception
> -----------------------------------
>
>                 Key: KYLIN-3416
>                 URL: https://issues.apache.org/jira/browse/KYLIN-3416
>             Project: Kylin
>          Issue Type: Bug
>          Components: Query Engine
>    Affects Versions: v2.3.1
>            Reporter: Lemont
>            Priority: Blocker
>
> Hi,team:
>   Ithink there is a conflict between dimensional aggregation and count distinct.
> For example:
> select
>  floor((1524931200 - biz_time)/(30*86400)),
>  count(DISTINCT id) id
>  from test
>  group by floor((1524931200 - biz_time)/(30*86400))
> Caused by: java.lang.NullPointerException
>  at org.apache.kylin.measure.bitmap.RoaringBitmapCounter.getMutableBitmap(RoaringBitmapCounter.java:58)
>  at org.apache.kylin.measure.bitmap.RoaringBitmapCounter.orWith(RoaringBitmapCounter.java:72)
>  at org.apache.kylin.measure.bitmap.BitmapAggregator.aggregate(BitmapAggregator.java:43)
>  at org.apache.kylin.measure.bitmap.BitmapDistinctCountAggFunc.add(BitmapDistinctCountAggFunc.java:31)
>  



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