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  1. Derby
  2. DERBY-2526

Wrong results with queries that use the JOIN ... ON syntax to join with views or other non-base table expressions.

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 10.0.2.1, 10.1.3.1, 10.2.2.0, 10.3.1.4
    • 10.1.3.2, 10.2.2.1, 10.3.1.4
    • SQL
    • None
    • Release Note Needed

    Description

      I think both select statements in the attached repro script should return 1 row, but in fact the first statement returns 1 row and the second returns zero rows.

      The only difference between the two statements is that the columns in the UNION view are listed in a different order (bvw vs. bvw2).

      This seems like a bug to me; the order of the columns in the view definition shouldn't matter, should it?

      As Army noted on the derby-dev list, the fact that this reproduces with 10.0 means that it is not caused by some of the 10.2 optimizer changes. Something else is going wrong.

      Attachments

        1. derby-2526.sql
          0.9 kB
          Bryan Pendleton
        2. goodQuery.log
          7 kB
          Bryan Pendleton
        3. badQuery.log
          5 kB
          Bryan Pendleton
        4. firstTryPatch.diff
          1 kB
          Bryan Pendleton
        5. DistinctTestNotes.txt
          3 kB
          Bryan Pendleton
        6. d2526_v1.patch
          2 kB
          A B
        7. d2526_v1.html
          19 kB
          A B
        8. d2526_v2.patch
          9 kB
          A B
        9. d2526_v2.stat
          0.2 kB
          A B
        10. releaseNote.html
          4 kB
          A B
        11. releaseNote.html
          4 kB
          Myrna van Lunteren
        12. TestDerby.java
          12 kB
          Katherine Marsden

        Issue Links

          is part of

          Task - A task that needs to be done. DERBY-2034 Tracking of bugs that lead to incorrect results being stored or returned to the client

          • Trivial - Cosmetic problem like misspelt words or misaligned text.
          • Closed
          is related to

          Bug - A problem which impairs or prevents the functions of the product. DERBY-3023 Different result rows depending on the sequence of INNER JOIN and OUTER JOIN

          • Major - Major loss of function.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. DERBY-4679 Several left outer joins causes unstable query with incorrect results

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. DERBY-5933 SQL sorting error

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. DERBY-4695 Internal assignment of tablenumer, columnnumber looks wrong in query tree, although no ill effects are seen.

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Activity

            People

              army A B
              bryanpendleton Bryan Pendleton
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              Dates

                Created:
                Updated:
                Resolved: