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Posted to dev@lucene.apache.org by "Robert Muir (Resolved) (JIRA)" <ji...@apache.org> on 2012/03/16 15:29:42 UTC
[jira] [Resolved] (LUCENE-3848) basetokenstreamtestcase should fail
if tokenstream starts with posinc=0
[ https://issues.apache.org/jira/browse/LUCENE-3848?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Robert Muir resolved LUCENE-3848.
---------------------------------
Resolution: Fixed
Fix Version/s: 3.6
I opened LUCENE-3873 to integrate MockGraphTokenFilter into tests.
> basetokenstreamtestcase should fail if tokenstream starts with posinc=0
> -----------------------------------------------------------------------
>
> Key: LUCENE-3848
> URL: https://issues.apache.org/jira/browse/LUCENE-3848
> Project: Lucene - Java
> Issue Type: Bug
> Reporter: Robert Muir
> Fix For: 3.6, 4.0
>
> Attachments: LUCENE-3848-MockGraphTokenFilter.patch, LUCENE-3848.patch, LUCENE-3848.patch
>
>
> This is meaningless for a tokenstream to start with posinc=0,
> Its also caused problems and hairiness in the indexer (LUCENE-1255, LUCENE-1542),
> and it makes senseless tokenstreams. We should add a check and fix any that do this.
> Furthermore the same bug can exist in removing-filters if they have enablePositionIncrements=false.
> I think this option is useful: but it shouldnt mean 'allow broken tokenstream', it just means we
> don't add gaps.
> If you remove tokens with enablePositionIncrements=false it should not cause the TS to start with
> positionincrement=0, and it shouldnt 'restructure' the tokenstream (e.g. moving synonyms on top of a different word).
> It should just not add any 'holes'.
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