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  1. Lucene - Core
  2. LUCENE-7315

Flexible "standard" query parser parses on whitespace

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    Details

    • Type: Bug
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: modules/queryparser
    • Labels:
      None
    • Lucene Fields:
      New

      Description

      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'.

        Attachments

        1. LUCENE-7315.patch
          104 kB
          Steve Rowe

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              • Assignee:
                steve_rowe Steve Rowe
                Reporter:
                steve_rowe Steve Rowe
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                • Created:
                  Updated: