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  1. Lucene - Core
  2. LUCENE-8796

Use exponential search in IntArrayDocIdSet advance method

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Details

    • Improvement
    • Status: Closed
    • Minor
    • Resolution: Fixed
    • None
    • 9.0, 8.2
    • None
    • None
    • New, Patch Available

    Description

      Chatting with jpountz , he suggested to improve IntArrayDocIdSet by making its advance method use exponential search instead of binary search. This should help performance of queries including conjunctions: given that ConjunctionDISI uses leap frog, it advances through doc ids in small steps, hence exponential search should be faster when advancing on average compared to binary search.

       

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              Unassigned Unassigned
              lucacavanna Luca Cavanna
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