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  1. Lucene - Core
  2. LUCENE-7654

To-parent block joins should implement two-phase iteration

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 6.5, 7.0
    • Component/s: None
    • Labels:
      None
    • Lucene Fields:
      New

      Description

      To-parent block joins are a good fit for two-phase iteration. Currently the iterator implementation visits all child matches before returning a parent match. Instead, an approximation would only need to find one child match in order to return a potential parent match. This would make to-parent block joins more efficient when used in conjunctions.

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              • Assignee:
                Unassigned
                Reporter:
                jpountz Adrien Grand
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                • Created:
                  Updated:
                  Resolved: