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https://issues.apache.org/jira/browse/SPARK-15947?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiangrui Meng closed SPARK-15947.
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> Make pipeline components backward compatible with old vector columns in
> Scala/Java
> ----------------------------------------------------------------------------------
>
> Key: SPARK-15947
> URL: https://issues.apache.org/jira/browse/SPARK-15947
> Project: Spark
> Issue Type: Sub-task
> Components: ML, MLlib
> Affects Versions: 2.0.0
> Reporter: Xiangrui Meng
> Assignee: Xiangrui Meng
>
> After SPARK-15945, we should make ALL pipeline components accept old vector
> columns as input and do the conversion automatically (probably with a warning
> message), in order to smooth the migration to 2.0.
> --Note that this includes loading old saved models.-- SPARK-16000 handles
> backward compatibility in model loading.
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