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  1. Apache Jena
  2. JENA-1774

Optimize DISTINCT-ORDERBY

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • Jena 3.13.1
    • Jena 3.14.0
    • ARQ
    • None

    Description

      TransformOrderByDistinctApplication is missing the chance to rewrite the form:

      SELECT DISTINCT * { ...} ORDER BY ...

      which is

          (distinct
        (order ...

      and could be

          (order ...
        (distinct

      TransformOrderByDistinctApplication does already rewrite when there is a projection.

      SELECT DISTINCT ?x { ...} ORDER BY ?x

          (order (?x)
        (distinct
            (project (?x)

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            andy Andy Seaborne
            andy Andy Seaborne
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              Updated:
              Resolved:

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