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https://issues.apache.org/jira/browse/TAJO-2168?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15360437#comment-15360437
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ASF GitHub Bot commented on TAJO-2168:
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Github user asfgit closed the pull request at:
https://github.com/apache/tajo/pull/1035
> NullPointerException occurs when a simple query contains a python udf
> ---------------------------------------------------------------------
>
> Key: TAJO-2168
> URL: https://issues.apache.org/jira/browse/TAJO-2168
> Project: Tajo
> Issue Type: Bug
> Components: Function/UDF
> Affects Versions: 0.12.0, 0.11.3
> Reporter: Jihoon Son
> Assignee: Jihoon Son
> Fix For: 0.12.0, 0.11.4
>
>
> See the title. The cause is that the python script engine is not started for
> simple queries. In addition, the same FunctionEval has different hash values
> which makes EvalContext.hasScriptEngine() failed.
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