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  1. Blazegraph (by SYSTAP)
  2. BLZG-1366

hint:Prior and FILTER EXISTS

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    Details

    • Type: Bug
    • Status: Open
    • Priority: Medium
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None

      Description

      With the following five triples:
      s p o
      <eg:a> <eg> 1
      <eg:a> <eg:ap> 2
      <eg:b> <eg> 3
      <eg:b> <eg> <eg:b>
      <eg:b> <eg:ap> 4
      and the following query:

      select *
      { ?s ?p ?o .
        hint:Prior hint:runLast true.
        FILTER NOT EXISTS {
          ?s ?p <eg:b>
         }
      } 
      

      the query hint is unsound

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              Assignee:
              michaelschmidt michaelschmidt
              Reporter:
              jjc Jeremy Carroll
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                Dates

                Created:
                Updated: