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https://issues.apache.org/jira/browse/SOLR-124?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12599369#action_12599369
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Yonik Seeley commented on SOLR-124:
-----------------------------------

Yes it is mostly a duplicate (I did a search before I opened 559, but didn't 
turn up this one).

I had been planning on having to implement our own deleteByQuery efficiently w/ 
certain IndexWriter extension points, but Lucene now has deleteByQuery in 
trunk, so we should just wait for that.


> use NewIndexModifier, LUCENE-565
> --------------------------------
>
>                 Key: SOLR-124
>                 URL: https://issues.apache.org/jira/browse/SOLR-124
>             Project: Solr
>          Issue Type: Improvement
>          Components: update
>            Reporter: Yonik Seeley
>
> LUCENE-565 adds extension points to the IndexWriter, and adds delete-by-term 
> functionality.
> We should probably take advantage of this (when available) in our 
> UpdateHandler (a new one, or modify DU2?)
> and perhaps implement a more efficient deleteByQuery.

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