[jira] [Resolved] (SPARK-28615) Add a guide line for dataframe functions to say column signature function is by default

["Hyukjin Kwon (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-28615?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon resolved SPARK-28615.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 3.0.0

Issue resolved by pull request 25355
[https://github.com/apache/spark/pull/25355]

> Add a guide line for dataframe functions to say column signature function is by default
> ---------------------------------------------------------------------------------------
>
>                 Key: SPARK-28615
>                 URL: https://issues.apache.org/jira/browse/SPARK-28615
>             Project: Spark
>          Issue Type: Improvement
>          Components: Documentation, SQL
>    Affects Versions: 2.4.3
>            Reporter: Weichen Xu
>            Assignee: Weichen Xu
>            Priority: Minor
>             Fix For: 3.0.0
>
>
> Add a guide line for dataframe functions to say column signature function is by default. like:
> {code}
> This function APIs usually have methods with Column signature only because it can support not only Column but also other types such as a native string. The other variants currently exist for historical reasons.
> {code}



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