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  1. Solr
  2. SOLR-3636

edismax, synonyms and mm=100%

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Minor
    • Resolution: Duplicate
    • Affects Version/s: None
    • Fix Version/s: 4.0
    • Component/s: query parsers
    • Labels:
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      Description

      There is a problem with query-side synonyms, edismax and must-match=100%.

      edismax interprets must-match=100% as "number of terms found by edismax from the original query". These terms go through the query analyzer, and the synonym filter creates more terms, but the must-match term count is not incremented. Thus, given a synonym of

      monkeyhouse => monkey house
      

      the query q=big+monkeyhouse&mm=100% becomes (effectively) q=big+monkey+house&mm=2. This query finds documents matching only two out of three terms big+monkey, monkey+house, big+house.

      This might also be a problem in dismax.

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              • Assignee:
                Unassigned
                Reporter:
                lancenorskog Lance Norskog
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                  Updated:
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