[jira] [Commented] (SPARK-8240) string function: concat

["Yu Ishikawa (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-8240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14696456#comment-14696456 ] 

Yu Ishikawa commented on SPARK-8240:
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[~rxin] I think it would be more natural to support arguments which consists of mixed {{Column}} and {{String}}. What do you think?

h4. Example.
{noformat}
concat(colA, " , ", colB, ", ", colC)
{noformat}

> string function: concat
> -----------------------
>
>                 Key: SPARK-8240
>                 URL: https://issues.apache.org/jira/browse/SPARK-8240
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>            Reporter: Reynold Xin
>            Assignee: Reynold Xin
>             Fix For: 1.5.0
>
>
> concat(string|binary A, string|binary B...): string / binary
> Returns the string or bytes resulting from concatenating the strings or bytes passed in as parameters in order. For example, concat('foo', 'bar') results in 'foobar'. Note that this function can take any number of input strings.



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