Uploaded image for project: 'Derby'
  1. Derby
  2. DERBY-4582

Timestamps inserted with GMT calendar are 1 hour later when subsequently read with GMT calendar (Server Mode Only).



    • Normal
    • Embedded/Client difference, Wrong query result


      This issue only appears to happen in Network Server/Client mode. Embedded mode does not have the issue.

      My timezone is American/Chicago. Saving timestamps with values for the 6 hours prior to DST start are being read back in as values 1 hour later than written. (I believe the issue happens on the write because values written in Network Server/Client mode and read in Embedded mode are incorrect, while values written and read in Embedded mode are corect.)

      Values between 3/13/2010 - 20:00 CST and 3/14/2010 - 02:00 CST will return timstamps 1 hour off. The "setTimestamp" method is being passed a GMT calendar with the timestamp:

      I have a complete test class I can attach, but here is a summary:

      private final TimeZone gmtTZ = TimeZone.getTimeZone("GMT");
      private final Calendar gmtCal = Calendar.getInstance(gmtTZ);
      String sql = "INSERT INTO app.dst_test (id, gmt_timestamp, milli_time) VALUES(?,?,?)";
      String sql2 = "SELECT * from app.dst_test where id=?";
      ps.setTimestamp(2, ts, gmtCal);
      Timestamp tsRead = rs.getTimestamp("gmt_timestamp", gmtCal);


        1. derby-4582-10.5.diff
          71 kB
          Lily Wei
        2. derby-4582-6a-javame.diff
          3 kB
          Knut Anders Hatlen
        3. derby-4582-5a-bugfix.diff
          3 kB
          Knut Anders Hatlen
        4. derby-4582-4a-client-receive.diff
          44 kB
          Knut Anders Hatlen
        5. derby-4582-3a-server-send.diff
          9 kB
          Knut Anders Hatlen
        6. derby-4582-2a-server-receive.diff
          9 kB
          Knut Anders Hatlen
        7. derby-4582-1a-client-send.diff
          24 kB
          Knut Anders Hatlen
        8. ASF.LICENSE.NOT.GRANTED--upd-rs-test.diff
          5 kB
          Knut Anders Hatlen
        9. ASF.LICENSE.NOT.GRANTED--junit.diff
          13 kB
          Knut Anders Hatlen
        10. junit.diff
          10 kB
          Knut Anders Hatlen
        11. calendar.diff
          17 kB
          Knut Anders Hatlen
        12. DerbyTest.java
          9 kB
          Keith Kruse

        Issue Links



              knutanders Knut Anders Hatlen
              keith13660 Keith Kruse
              0 Vote for this issue
              1 Start watching this issue