[jira] Commented: (SOLR-2108) ReversedWildcardFilter can create false positives

["Robert Muir (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-2108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12907261#action_12907261 ] 

Robert Muir commented on SOLR-2108:
-----------------------------------

by the way, I plan to just let this one sit unless we all agree its the right thing to do.

People using the reversedwildcardfilter can see "false positives" 
from other queries like FuzzyQuery too, because of the reversed terms in the index.

I think its unreasonable (though possible) to try to ensure that no queries (fuzzy, regex, ...) 
hit false positives from the reversed terms being there.

On the other hand, it might seem reasonable to fix it just for the Wildcard case, since
thats why someone used this filter to begin with.


> ReversedWildcardFilter can create false positives
> -------------------------------------------------
>
>                 Key: SOLR-2108
>                 URL: https://issues.apache.org/jira/browse/SOLR-2108
>             Project: Solr
>          Issue Type: Bug
>            Reporter: Robert Muir
>            Priority: Minor
>             Fix For: 4.0
>
>         Attachments: SOLR-2108.patch
>
>
> Reported from the userlist: 
> {noformat}
> "For instance, the query *zemog* matches documents that contain Gomez"
> {noformat}
> http://www.lucidimagination.com/search/document/35abfdabfcec99b7/false_matches_with_reversedwildcardfilterfactory

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