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  1. Blazegraph (by SYSTAP)
  2. BLZG-1232 RDR metaticket
  3. BLZG-1228

RDF reification in SPARQL queries is not translated to RDR semantics

    Details

    • Type: Sub-task
    • Status: Open
    • Resolution: Unresolved
    • Affects Version/s: BLAZEGRAPH_RELEASE_1_5_1
    • Fix Version/s: None
    • Component/s: Query Plan Generator
    • Labels:
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      Description

      SPARQL* specifies that we should automatically recognize reified statement models in queries and convert them into efficient RDR access paths.

      TODO Does this require a test for both the ground triple and the reified statement model in the query?

        Activity

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        bryanthompson bryanthompson added a comment -

        I looked through the code and could not find where we were doing this. I think that this feature might not have been implemented. We do have a test case (one) for this now (which fails). The most likely implementation approach is an AST optimizer rewrite.

        Show
        bryanthompson bryanthompson added a comment - I looked through the code and could not find where we were doing this. I think that this feature might not have been implemented. We do have a test case (one) for this now (which fails). The most likely implementation approach is an AST optimizer rewrite.

          People

          • Assignee:
            mrpersonick mrpersonick
            Reporter:
            bryanthompson bryanthompson
          • Votes:
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            Watchers:
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            Dates

            • Created:
              Updated: