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  1. Derby
  2. DERBY-887

Select statement returns wrong number of rows if you compare an integer column with a boolean expression in the where clause

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 10.0.2.0, 10.0.2.1, 10.1.1.0, 10.1.2.1, 10.1.3.1, 10.2.1.6, 10.2.2.0, 10.3.1.4, 10.3.2.1, 10.3.3.0, 10.4.1.3, 10.4.2.0, 10.5.1.1, 10.5.2.0, 10.5.3.0
    • 10.5.3.1, 10.6.1.0
    • SQL
    • None
    • Normal
    • Wrong query result

    Description

      I have a table with 2 columns one is BIGINT which is Generated always starting with 1 and increment by1 and the other one is timestamp

      ij> select id,date from inbox where id = 0<3;
      ID |DATE
      -----------------------------------------------
      25 |2006-01-26 14:35:46.584
      34 |2006-01-26 14:36:16.588
      21 |2006-01-26 14:34:46.455
      22 |2006-01-26 14:34:47.176
      27 |2006-01-26 14:35:47.054
      24 |2006-01-26 14:35:16.58
      28 |2006-01-26 14:35:47.305
      35 |2006-01-26 14:36:18.771
      31 |2006-01-26 14:35:48.496
      32 |2006-01-26 14:35:48.887
      33 |2006-01-26 14:35:49.308

      11 rows selected
      ij> select id,date from inbox where id = true;
      ID |DATE
      -----------------------------------------------
      21 |2006-01-26 14:34:46.455

      1 row selected

      Both queries should return same number of rows

      Also If I delete the first row from the table then select id,date from inbox where id = true; returns the second row
      ij> delete from inbox where id=21;

      1 row inserted/updated/deleted

      Then again run
      ij> select id ,date from inbox where id=true;
      ID |DATE
      -----------------------------------------------
      22 |2006-01-26 14:35:16.58

      Which indicates that the select returns only the first row and then is getting closed

      Attachments

        1. bug887_interim.diff
          198 kB
          Richard N. Hillegas
        2. bug887_interim.diff
          198 kB
          Richard N. Hillegas
        3. DERBY-887.sql
          0.3 kB
          Manjula Kutty
        4. derby-887-01-ag-noImplicitCasts.diff
          27 kB
          Richard N. Hillegas
        5. derby-887-01-aj-noImplicitCasts.diff
          28 kB
          Richard N. Hillegas
        6. releaseNote.html
          2 kB
          Richard N. Hillegas

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            rhillegas Richard N. Hillegas
            mkutty Manjula Kutty
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            Dates

              Created:
              Updated:
              Resolved:

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