[jira] [Resolved] (SPARK-12580) Remove string concatenations from usage and extended in @ExpressionDescription

["Yin Huai (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-12580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yin Huai resolved SPARK-12580.
------------------------------
       Resolution: Fixed
    Fix Version/s: 2.0.0

Issue resolved by pull request 10524
[https://github.com/apache/spark/pull/10524]

> Remove string concatenations from usage and extended in @ExpressionDescription
> ------------------------------------------------------------------------------
>
>                 Key: SPARK-12580
>                 URL: https://issues.apache.org/jira/browse/SPARK-12580
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.0.0
>            Reporter: Kazuaki Ishizaki
>            Assignee: Apache Spark
>            Priority: Minor
>             Fix For: 2.0.0
>
>
> More than one string concatenation in {{usage}} or {{extended}} for {{@ExpressinDescrption}} may cause compilation error.
> We remove a string concatenation in these fields based on the following policy describe at https://github.com/apache/spark/pull/10488
> Let's use multi-line string literals. If we have to have a line with more than 100 characters, let's use {{// scalastyle:off line.size.limit}} and {{// scalastyle:on line.size.limit}} to just bypass the line number requirement.



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