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  1. Lucene - Core
  2. LUCENE-3830

MappingCharFilter could be improved by switching to an FST.

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 4.0-ALPHA
    • Component/s: None
    • Lucene Fields:
      New

      Description

      MappingCharFilter stores an overly complex tree-like structure for matching input patterns. The input is a union of fixed strings mapped to a set of fixed strings; an fst matcher would be ideal here and provide both memory and speed improvement I bet.

        Attachments

        1. LUCENE-3830.patch
          35 kB
          Michael McCandless
        2. LUCENE-3830.patch
          35 kB
          Michael McCandless
        3. LUCENE-3830.patch
          28 kB
          Michael McCandless
        4. PerfTestMappingCharFilter.java
          10 kB
          Michael McCandless

        Issue Links

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            • Assignee:
              mikemccand Michael McCandless
              Reporter:
              dweiss Dawid Weiss

              Dates

              • Created:
                Updated:
                Resolved:

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