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https://issues.apache.org/jira/browse/SPARK-6916?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joseph K. Bradley closed SPARK-6916.
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Resolution: Not A Problem
Target Version/s: (was: 1.4.0)
> StringIndexer should preserve non-ML metadata
> ---------------------------------------------
>
> Key: SPARK-6916
> URL: https://issues.apache.org/jira/browse/SPARK-6916
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Affects Versions: 1.4.0
> Reporter: Joseph K. Bradley
> Priority: Minor
>
> StringIndexer sets the output column metadata to hold the ML-specific
> metadata created after indexing the column. It does not carry over non-ML
> metadata from the input column. I figure it should. (That's the behavior I
> used for VectorIndexer.)
> Ping [~mengxr]
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