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Posted to issues@kylin.apache.org by "Lemont (JIRA)" <ji...@apache.org> on 2018/06/19 12:26:00 UTC
[jira] [Commented] (KYLIN-3416) Kylin bitmap null pointer exception
[ https://issues.apache.org/jira/browse/KYLIN-3416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16517008#comment-16517008 ]
Lemont commented on KYLIN-3416:
-------------------------------
I think there are something relate to
{{Only return counter for precise count_distinct if query is exactAggregate}}
{{[KYLIN-2606}}|https://issues.apache.org/jira/browse/KYLIN-2606]
> 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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