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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-2136) Function Queries: if() function
Date Mon, 13 Jun 2011 16:49:51 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13048646#comment-13048646
] 

Yonik Seeley commented on SOLR-2136:
------------------------------------

Thanks Koji, I just committed a fix for this cut'n'paste error.

> Function Queries: if() function
> -------------------------------
>
>                 Key: SOLR-2136
>                 URL: https://issues.apache.org/jira/browse/SOLR-2136
>             Project: Solr
>          Issue Type: New Feature
>          Components: search
>    Affects Versions: 1.4.1
>            Reporter: Jan H√łydahl
>             Fix For: 4.0
>
>         Attachments: SOLR-2136.patch, SOLR-2136.patch
>
>
> Add an if() function which will enable conditional function queries.
> The function could be modeled after a spreadsheet if function (e.g: http://wiki.services.openoffice.org/wiki/Documentation/How_Tos/Calc:_IF_function)
> IF(test; value1; value2) where:
>     test is or refers to a logical value or expression that returns a logical value (TRUE
or FALSE).
>     value1 is the value that is returned by the function if test yields TRUE.
>     value2 is the value that is returned by the function if test yields FALSE.
> If value2 is omitted it is assumed to be FALSE; if value1 is also omitted it is assumed
to be TRUE.
> Example use:
> if(color=="red"; 100; if(color=="green"; 50; 25))
> This function will check the document field "color", and if it is "red" return 100, if
it is "green" return 50, else return 25.

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