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From "Mary Jo Sminkey (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-9185) Solr's "Lucene"/standard query parser should not split on whitespace before sending terms to analysis
Date Fri, 10 Jun 2016 22:49:20 GMT

    [ https://issues.apache.org/jira/browse/SOLR-9185?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15325445#comment-15325445
] 

Mary Jo Sminkey commented on SOLR-9185:
---------------------------------------

Agree that in a case like this, an incremental approach is often best, where the new behavior
is available via a setting, etc. while warning people that existing method is decremented
and will be replaced in the next (or a future) major update. 

> Solr's "Lucene"/standard query parser should not split on whitespace before sending terms
to analysis
> -----------------------------------------------------------------------------------------------------
>
>                 Key: SOLR-9185
>                 URL: https://issues.apache.org/jira/browse/SOLR-9185
>             Project: Solr
>          Issue Type: Bug
>            Reporter: Steve Rowe
>            Assignee: Steve Rowe
>
> Copied from LUCENE-2605:
> The queryparser parses input on whitespace, and sends each whitespace separated term
to its own independent token stream.
> This breaks the following at query-time, because they can't see across whitespace boundaries:
> n-gram analysis
> shingles
> synonyms (especially multi-word for whitespace-separated languages)
> languages where a 'word' can contain whitespace (e.g. vietnamese)
> Its also rather unexpected, as users think their charfilters/tokenizers/tokenfilters
will do the same thing at index and querytime, but
> in many cases they can't. Instead, preferably the queryparser would parse around only
real 'operators'.



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