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  1. Apache Jena
  2. JENA-111

Improving TopN optimization in case of an intermediate OpModifier

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Details

    • Improvement
    • Status: Closed
    • Minor
    • Resolution: Done
    • None
    • Jena 2.11.0
    • ARQ

    Description

      In the TopN optimization (Jena-89) it would be useful to handle also the case in which there are some other OpModifiers (I think they are the only category of Ops that can be in that position in the tree) between Slice and Order By, for example OpProject:

      (slice _1
      (project ?s ...
      (order by <condition>

      ->
      (project ?s ...
      (top 1 <condition>

      Attachments

        1. JENA-111_ARQ_r1165795.patch
          12 kB
          Paolo Castagna
        2. topk_project.patch
          2 kB
          Sara Magliacane

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              castagna Paolo Castagna
              sara.magliacane Sara Magliacane
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                Created:
                Updated:
                Resolved: