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https://issues.apache.org/jira/browse/SPARK-6634?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon updated SPARK-6634:
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Labels: bulk-closed (was: )
> Allow replacing columns in Transformers
> ---------------------------------------
>
> Key: SPARK-6634
> URL: https://issues.apache.org/jira/browse/SPARK-6634
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Affects Versions: 1.3.0
> Reporter: Joseph K. Bradley
> Priority: Minor
> Labels: bulk-closed
>
> Currently, Transformers do not allow input and output columns to share the
> same name. (In fact, this is not allowed but also not even checked.)
> Short-term proposal: Disallow input and output columns with the same name,
> and add a check in transformSchema.
> Long-term proposal: Allow input & output columns with the same name, and
> where the behavior is that the output columns replace input columns with the
> same name.
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