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https://issues.apache.org/jira/browse/SPARK-9448?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Reynold Xin resolved SPARK-9448.
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Resolution: Fixed
Fix Version/s: 1.5.0
> GenerateUnsafeProjection should not share expressions across instances
> ----------------------------------------------------------------------
>
> Key: SPARK-9448
> URL: https://issues.apache.org/jira/browse/SPARK-9448
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Reynold Xin
> Assignee: Reynold Xin
> Priority: Blocker
> Fix For: 1.5.0
>
>
> We accidentally moved the list of expressions from the generated code
> instance to the class wrapper, and as a result, different threads are sharing
> the same set of expressions, which cause problems when the expressions have
> mutable state.
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