[jira] [Commented] (SPARK-31156) DataFrameStatFunctions API is not consistent with respect to Column type

["L. C. Hsieh (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-31156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17059824#comment-17059824 ] 

L. C. Hsieh commented on SPARK-31156:
-------------------------------------

I checked current DataFrameStatFunctions. Both bloomFilter and countMinSketch also accept column name as String as parameter. Isn't? Do you mean you propose to add Column parameter support to other functions?

> DataFrameStatFunctions API is not consistent with respect to Column type
> ------------------------------------------------------------------------
>
>                 Key: SPARK-31156
>                 URL: https://issues.apache.org/jira/browse/SPARK-31156
>             Project: Spark
>          Issue Type: Improvement
>          Components: Java API
>    Affects Versions: 2.4.4
>            Reporter: Oleksii Kachaiev
>            Priority: Minor
>
> Some functions from {{org.apache.spark.sql.DataFrameStatFunctions}} class accepts {{org.apache.spark.sql.Column}} as an argument:
>  * {{bloomFilter}}
>  * {{countMinSketch}}
> When the rest of the functions accept only {{String}} (or collections of {{String}}'s respectively):
>  * {{approxQuantile}}
>  * {{corr}}
>  * {{cov}}
>  * {{crosstab}}
>  * {{freqItems}}
>  * {{sampleBy}}



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