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https://issues.apache.org/jira/browse/KYLIN-4191?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andras Istvan Nagy updated KYLIN-4191:
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Attachment: NPE.txt
> NPE in StreamingTupleConverter when querying count on a dimension field
> -----------------------------------------------------------------------
>
> Key: KYLIN-4191
> URL: https://issues.apache.org/jira/browse/KYLIN-4191
> Project: Kylin
> Issue Type: Bug
> Components: Real-time Streaming
> Affects Versions: v3.0.0-alpha
> Reporter: Andras Istvan Nagy
> Priority: Major
> Attachments: NPE.txt
>
>
> I am using the real-time olap feature with a lambda datasource definition.
> When executing a query that has a count(dim_field) in the select clause,
> where "dim_field" is one of the dimension fields, I get a NPE from
> org.apache.kylin.stream.core.query.StreamingTupleConverter.
> (According to a colleague, a similar query used to work for some time in our
> environment, and then stopped working, but I can't verify this statement.
> Restarting the Kylin processes or disabling/enabling the cube does not "fix"
> the issue.)
> Please see stacktrace below.
>
>
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