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  1. Lucene - Core
  2. LUCENE-5122

DiskDV probably shouldnt use BlockPackedReader for SortedDV doc-to-ord

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    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Won't Fix
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
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    • Lucene Fields:
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      Description

      I dont think "blocking" provides any benefit here in general. we can assume the ordinals are essentially random and since SortedDV is single-valued, its probably better to just use the simpler packedints directly?

      I guess the only case where it would help is if you sorted your segments by that DV field. But that seems kinda wierd/esoteric to sort your index by a deref'ed string value, e.g. I don't think its even supported by SortingMP.

      For the SortedSet "ord stream", this can exceed 2B values so for now I think it should stay as blockpackedreader. but it could use a large blocksize...

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        1. LUCENE-5122.patch
          9 kB
          Robert Muir

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            • Assignee:
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              Reporter:
              rcmuir Robert Muir
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