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Posted to issues@lucene.apache.org by "Chongchen Chen (Jira)" <ji...@apache.org> on 2019/09/14 06:35:00 UTC

[jira] [Commented] (LUCENE-8740) AssertionError FlattenGraphFilter

    [ https://issues.apache.org/jira/browse/LUCENE-8740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16929699#comment-16929699 ] 

Chongchen Chen commented on LUCENE-8740:
----------------------------------------

It seems that FlattenGraphFilter doesn't work well with StopFilter's result. The workaround is putting the FlattenGraphFilter before StopFilter.

> AssertionError FlattenGraphFilter
> ---------------------------------
>
>                 Key: LUCENE-8740
>                 URL: https://issues.apache.org/jira/browse/LUCENE-8740
>             Project: Lucene - Core
>          Issue Type: Bug
>    Affects Versions: 7.5, 8.0
>            Reporter: Markus Jelsma
>            Priority: Major
>             Fix For: 8.1, master (9.0)
>
>         Attachments: LUCENE-8740.patch
>
>
> Our unit tests picked up an unusual AssertionError in FlattenGraphFilter which manifests itself only in very specific circumstances involving WordDelimiterGraph, StopFilter, FlattenGraphFilter and MinhashFilter.



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