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Date: Thu, 26 May 2011 09:38:47 +0000 (UTC)
From: "Michael McCandless (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
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Subject: [jira] [Commented] (LUCENE-3146) IndexReader.setNorms is no op if
 one of the field instances omits norms
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    [ https://issues.apache.org/jira/browse/LUCENE-3146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13039611#comment-13039611 ] 

Michael McCandless commented on LUCENE-3146:
--------------------------------------------

I think this behavior, while spooky, is correct.  LUCENE-2846 flipped the norms merging behavior so that omitNorm now "spreads", in 4.0 (not 3.x).

But the javadoc in Field.NOT_ANALYZED_NO_NORMS needs to be fixed, on trunk.

I think, also, SegmentReader.doSetNorm should throw an exc if you attempt to set norm on a field that does not have norms... it's bad that we silently ignore that... makes the app think the call succeeded when in fact nothing happened.

> IndexReader.setNorms is no op if one of the field instances omits norms
> -----------------------------------------------------------------------
>
>                 Key: LUCENE-3146
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3146
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: core/search
>            Reporter: Shai Erera
>             Fix For: 4.0
>
>         Attachments: LUCENE-3146.patch
>
>
> If I add two documents to an index w/ same field, and one of them omit norms, then IndexReader.setNorms is no-op. I'll attach a patch w/ test case

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