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https://issues.apache.org/jira/browse/SOLR-9185?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Rowe updated SOLR-9185:
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Attachment: SOLR-9185.patch
Initial WIP patch, mostly just grammar changes brought over from LUCENE-2605;
no tests yet, and I haven't tried to generate/compile.
In addition to the grammar changes, I've removed the {{Version matchVersion}}
param from {{SolrQueryParserBase.init()}} - it was being ignored, and the
equivalent param was removed from the Lucene classic QueryParser in LUCENE-5859.
Note that I've added an option to preserve the old behavior
({{\{get,set\}SplitOnWhitespace()}}) and made it default to {{true}} - it
wasn't necessary to create two separate versions of the parser to enable this.
> 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
> Attachments: SOLR-9185.patch
>
>
> 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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