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From "Commit Tag Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-381) delete-by-query does not support purely negative queries
Date Thu, 31 Jan 2013 19:29:14 GMT

    [ https://issues.apache.org/jira/browse/SOLR-381?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13567999#comment-13567999
] 

Commit Tag Bot commented on SOLR-381:
-------------------------------------

[trunk commit] Chris M. Hostetter
http://svn.apache.org/viewvc?view=revision&revision=1441154

SOLR-381: test demonstrating deleteByQuery works with pure-negative queries, and QParsers
in general

                
> delete-by-query does not support purely negative queries
> --------------------------------------------------------
>
>                 Key: SOLR-381
>                 URL: https://issues.apache.org/jira/browse/SOLR-381
>             Project: Solr
>          Issue Type: Bug
>          Components: update
>            Reporter: Erik Hatcher
>            Priority: Minor
>
> Reported by Rob Casson:
> {noformat}
> indexing the example docs from 1.2, these steps work:
> curl http://localhost:8983/solr/update --data-binary
> '<delete><query>solr</query></delete>' -H 'Content-type:text/xml;
> charset=utf-8'
> curl http://localhost:8983/solr/update --data-binary '<optimize />' -H
> 'Content-type:text/xml; charset=utf-8'
> but if i reindex, and change the delete query to a negative, the
> non-'solr' docs don't get deleted:
> curl http://localhost:8983/solr/update --data-binary
> '<delete><query>-solr</query></delete>' -H 'Content-type:text/xml;
> charset=utf-8'
> curl http://localhost:8983/solr/update --data-binary '<optimize />' -H
> 'Content-type:text/xml; charset=utf-8'
> And detailed by Hoss with a workaround:
> the delete by query does "the 
> right thing" with a purely negative query ... when the customization was 
> added to Solr to support pure negative queries it was done at the 
> SolrIndexSearcher level when computing DocSets, but delete by query uses a 
> lower level method passing in a HitCOllector.
> the work arround is to include *:* in yoru query ...
>    <delete><query>*:* -solr</query></delete>
> ... if/when this is fixed 
> in Solr that's esentally what solr will do under the covers.
> {noformat}

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