[GitHub] srowen commented on a change in pull request #23910: [SPARK-27007][PYTHON]add rawPrediction to OneVsRest in PySpark

[GitBox <gi...@apache.org>]

srowen commented on a change in pull request #23910: [SPARK-27007][PYTHON]add rawPrediction to OneVsRest in PySpark
URL: https://github.com/apache/spark/pull/23910#discussion_r261240402
 
 

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 File path: python/pyspark/sql/dataframe.py
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 @@ -1980,6 +1980,29 @@ def withColumn(self, colName, col):
         assert isinstance(col, Column), "col should be Column"
         return DataFrame(self._jdf.withColumn(colName, col._jc), self.sql_ctx)
 
+    @ignore_unicode_prefix
+    def withColumns(self, colNames, cols):
 
 Review comment:
   It looks like the Scala impl has this method, but it's not exposed. Instead of adding it here, can you just use two calls to `withColumn` above?

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