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From "Joel Bernstein (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-10485) Add CalculateStream to allow Solr to behave like a scientific calculator
Date Wed, 12 Apr 2017 21:20:41 GMT

    [ https://issues.apache.org/jira/browse/SOLR-10485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15966648#comment-15966648
] 

Joel Bernstein commented on SOLR-10485:
---------------------------------------

I mapped the CalculateStream to *eval* function so it has broader uses the just a calculator.

> Add CalculateStream to allow Solr to behave like a scientific calculator
> ------------------------------------------------------------------------
>
>                 Key: SOLR-10485
>                 URL: https://issues.apache.org/jira/browse/SOLR-10485
>             Project: Solr
>          Issue Type: New Feature
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Joel Bernstein
>         Attachments: SOLR-10485.patch
>
>
> The CalculateStream returns a single empty Tuple to support this syntax:
> {code}
> select(eval(), add(1, 1) as result)
> {code}
> This will simply add the calculation to the Tuple and return it, turning Solr into a
scientific calculator.



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