Derby
  1. Derby
  2. DERBY-4371

Non-selected columns for SELECT DISTINCT allowed in ORDER BY clause if ordered by expression

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Critical Critical
    • Resolution: Fixed
    • Affects Version/s: 10.5.1.1
    • Fix Version/s: 10.7.1.1
    • Component/s: SQL
    • Labels:
      None
    • Issue & fix info:
      Repro attached
    • Bug behavior facts:
      Wrong query result

      Description

      How to repeat:

      ij> create table t (i integer, j integer);;
      0 rows inserted/updated/deleted
      ij> insert into t values (1,2),(1,3);
      2 rows inserted/updated/deleted
      ij> select distinct i from t order by j;
      ERROR 42879: The ORDER BY clause may not contain column 'J', since the query specifies DISTINCT and that column does not appear in the query result.
      ij> select distinct i from t order by j*2;
      I
      -----------
      1
      1

      2 rows selected

      1. DERBY-4371.diff
        2 kB
        Nirmal Fernando
      2. DERBY-4371-2.diff
        2 kB
        Nirmal Fernando
      3. DERBY-4371-3.diff
        4 kB
        Nirmal Fernando
      4. DERBY-4371-4.diff
        4 kB
        Nirmal Fernando
      5. derby-4371-5.diff
        5 kB
        Nirmal Fernando
      6. derby-4371-6.diff
        5 kB
        Nirmal Fernando
      7. derby-4371-tests.diff
        8 kB
        Nirmal Fernando
      8. derby-4371-7.diff
        5 kB
        Nirmal Fernando

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            • Assignee:
              Nirmal Fernando
              Reporter:
              Bernt M. Johnsen
            • Votes:
              1 Vote for this issue
              Watchers:
              1 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved:

                Development