[jira] [Commented] (SOLR-6383) regexTransformer returns no results if there is no match

["ASF subversion and git services (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-6383?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14100017#comment-14100017 ] 

ASF subversion and git services commented on SOLR-6383:
-------------------------------------------------------

Commit 1618489 from shalin@apache.org in branch 'dev/branches/branch_4x'
[ https://svn.apache.org/r1618489 ]

SOLR-6383: RegexTransformer returns no results after replaceAll if regex does not match a value

> regexTransformer returns no results if there is no match
> --------------------------------------------------------
>
>                 Key: SOLR-6383
>                 URL: https://issues.apache.org/jira/browse/SOLR-6383
>             Project: Solr
>          Issue Type: Bug
>            Reporter: Alexander Kingson
>         Attachments: SOLR-6383.patch, regexTransformer.patch
>
>
> When used in data-import config file to replace spaces in title with _ 
>  
> <field column="title_underscore"  regex="\s+" replaceWith="_"
>  sourceColName="title" />
> regexTransformer returns empty results for titles without spaces, i.e. when there is no match for the regex. According to the description it is equivalent to replaceAll which returns string when there is no match.



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