Derby
  1. Derby
  2. DERBY-6036

If you wrap a SELECT * view around a table, all of the columns are read from the base row even when you SELECT only a subset of the view columns.

    Details

    • Type: Bug Bug
    • Status: Open
    • Priority: Major Major
    • Resolution: Unresolved
    • Affects Version/s: 10.10.1.1
    • Fix Version/s: None
    • Component/s: SQL
    • Urgency:
      Normal
    • Issue & fix info:
      Repro attached, Workaround attached
    • Bug behavior facts:
      Performance, Seen in production

      Description

      This also affects SELECTs from views wrapping RestrictedVTIs. Restrictions are pushed into a restricted VTI if you wrap it in a view. However, projections are not. I will attach a script showing this problem.

      1. derbyAST.xml
        267 kB
        Rick Hillegas
      2. derby-6036-01-aa-testForRestrictionPushing.diff
        3 kB
        Rick Hillegas
      3. derby-6036.sql
        1 kB
        Rick Hillegas

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            People

            • Assignee:
              Unassigned
              Reporter:
              Rick Hillegas
            • Votes:
              3 Vote for this issue
              Watchers:
              4 Start watching this issue

              Dates

              • Created:
                Updated:

                Development