[jira] [Created] (LUCENE-7315) Flexible "standard" query parser parses on whitespace

["Steve Rowe (JIRA)" <ji...@apache.org>]

Steve Rowe created LUCENE-7315:
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             Summary: Flexible "standard" query parser parses on whitespace
                 Key: LUCENE-7315
                 URL: https://issues.apache.org/jira/browse/LUCENE-7315
             Project: Lucene - Core
          Issue Type: Bug
          Components: modules/queryparser
            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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