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https://issues.apache.org/jira/browse/SPARK-12580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kazuaki Ishizaki updated SPARK-12580:
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External issue ID: SPARK-12454, SPARK-12530 (was: 12454, 12530)
> 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
> Priority: Minor
>
> 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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