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From "Shalin Shekhar Mangar (JIRA)" <>
Subject [jira] [Updated] (SOLR-1871) Function Query "map" variant that allows "target" to be an arbitrary ValueSource
Date Mon, 02 Dec 2013 06:35:35 GMT


Shalin Shekhar Mangar updated SOLR-1871:

    Attachment: SOLR-1871.patch

This patch preserves backward compatibility in RangeMapFloatFunction constructor by wrapping
a float target or default in a ConstValueSource.

> Function Query "map" variant that allows "target" to be an arbitrary ValueSource
> --------------------------------------------------------------------------------
>                 Key: SOLR-1871
>                 URL:
>             Project: Solr
>          Issue Type: Improvement
>          Components: search
>    Affects Versions: 1.4
>            Reporter: Chris Harris
>            Assignee: Shalin Shekhar Mangar
>         Attachments: ASF.LICENSE.NOT.GRANTED--SOLR-1871.patch, SOLR-1871.patch, SOLR-1871.patch,
SOLR-1871.patch, SOLR-1871.patch
> Currently, as documented at, the "target"
of a map must be a floating point constant. I propose that you should have at least the option
of doing a map where the target is an arbitrary ValueSource.
> The particular use case that inspired this is that I want to be able to control how missing
date fields affected boosting. In particular, I want to be able to use something like this
in my function queries:
> {code}
> map(mydatefield,0,0,ms(NOW))
> {code}
> But this might have other uses.
> I'll attach an initial implementation.

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