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https://issues.apache.org/jira/browse/SOLR-8571?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15555478#comment-15555478
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Kevin Risden commented on SOLR-8571:
------------------------------------

I'm not sure the ConcatOperation will be easy to wire into the SQLHandler. The 
concat() and || functions don't have a delimiter. They just take a list of 
items to join together with the delimiters being any literal in between. I 
don't see that as an option for the ConcatOperation.

> Wire the ConcatOperation into the SQLhandler
> --------------------------------------------
>
>                 Key: SOLR-8571
>                 URL: https://issues.apache.org/jira/browse/SOLR-8571
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Joel Bernstein
>            Priority: Minor
>
> This will support the *concat* function. Syntax:
> {code}
> select a, b, concat(a,'|',b) as c from tableX
> {code}



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