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Date: Sat, 29 Aug 2009 02:39:32 -0700 (PDT)
From: "Uwe Schindler (JIRA)" <jira@apache.org>
To: java-dev@lucene.apache.org
Subject: [jira] Commented: (LUCENE-1872) Improve javadocs for Numeric*
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    [ https://issues.apache.org/jira/browse/LUCENE-1872?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12749097#action_12749097 ] 

Uwe Schindler commented on LUCENE-1872:
---------------------------------------

This is correct (first part), you can add a field more than once and it really works (there is a test about that). The results are the same like with a normal range query (so the trie terms do not interfere between each other).

About the second one: Sorting is not different from other numeric multi-value fields (in contrast to StringIndex where only one value/doc is allowed). The univerter assigns a value to each document. As it overrides values previously assigned to the document when iterating over all terms in the field, the last term would be the one saved in the FieldCache. So you would sort against the largest value per doc (because the smaller values are overridden by the larger ones in the field cache).

> Improve javadocs for Numeric*
> -----------------------------
>
>                 Key: LUCENE-1872
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1872
>             Project: Lucene - Java
>          Issue Type: Improvement
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>            Priority: Minor
>             Fix For: 2.9
>
>
> I'm working on improving Numeric* javadocs.

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