[jira] [Created] (SPARK-12965) Indexer setInputCol() doesn't resolve column names like DataFrame.col()

["Joshua Taylor (JIRA)" <ji...@apache.org>]

Joshua Taylor created SPARK-12965:
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             Summary: Indexer setInputCol() doesn't resolve column names like DataFrame.col()
                 Key: SPARK-12965
                 URL: https://issues.apache.org/jira/browse/SPARK-12965
             Project: Spark
          Issue Type: Bug
          Components: ML, Spark Core
    Affects Versions: 1.6.0
            Reporter: Joshua Taylor


The setInputCol() method doesn't seem to resolve column names in the same way that other methods do.  E.g., Given a DataFrame df, {{df.col("`a.b`")}} will return a column.  On a StringIndexer indexer, {{indexer.setInputCol("`a.b`")}} produces leads to an indexer where fitting and transforming seem to have no effect.



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