[jira] Commented: (LUCENE-879) Document number integrity merge policy

["Karl Wettin (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENE-879?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12495103 ] 

Karl Wettin commented on LUCENE-879:
------------------------------------

Forgot to tell about all the effects:

1. Replaces deleted documents with a new Document()
2. Stores a null term frequency vector
3. Sets norm to Similarity.encodeNorm(0f)



> Document number integrity merge policy
> --------------------------------------
>
>                 Key: LUCENE-879
>                 URL: https://issues.apache.org/jira/browse/LUCENE-879
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Store
>    Affects Versions: 2.1
>            Reporter: Karl Wettin
>            Priority: Minor
>         Attachments: LUNCENE-879.diff
>
>
> This patch allows for document numbers stays the same even after merge of segments with deletions.
> Consumer needs to do this:
> indexWriter.setSkipMergingDeletedDocuments(false);
> The effect will be that deleted documents are replaced by a new Document() in the merged segment, but not marked as deleted. This should probably be some policy thingy that allows for different solutions such as keeping the old document, et c.
> Also see http://www.nabble.com/optimization-behaviour-tf3723327.html#a10418880

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


---------------------------------------------------------------------
To unsubscribe, e-mail: java-dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-dev-help@lucene.apache.org