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  1. Lucene - Core
  2. LUCENE-4607

Add estimateDocCount to DocIdSetIterator

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 4.0
    • 4.3, 6.0
    • core/search
    • None
    • New, Patch Available

    Description

      this is essentially a spinnoff from LUCENE-4236
      We currently have no way to make any decsision on how costly a DISI is neither when we apply filters nor when we build conjunctions in BQ. Yet we have most of the information already and can easily expose them via a cost API such that BS and FilteredQuery can apply optimizations on per segment basis.

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            Unassigned Unassigned
            simonw Simon Willnauer
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