queryparser parses on whitespace
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Key: LUCENE-2605
URL: https://issues.apache.org/jira/browse/LUCENE-2605
Project: Lucene - Java
Issue Type: Bug
Reporter: Robert Muir
Fix For: 3.1, 4.0
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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