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https://issues.apache.org/jira/browse/DERBY-4582?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Keith Kruse updated DERBY-4582:
-------------------------------
Attachment: DerbyTest.java
Thanks for looking at this!
The test class has a "dbmode" enum variable that allows it to run in Client or
Embedded mode. The error only happend in Client mode.
I run the test in the America/Chicago time zone. The test timestamp data have
to change to test in other timezones.
I am including two sets of output from the test. The first set shows failure
in client mode (search for *FAILED). The second set shows success in embedded
mode.
Database Mode: CLIENT
Local Time Zone: Central Standard Time
Using Client Driver: org.apache.derby.jdbc.ClientDriver
Using Client URL:
jdbc:derby://localhost:1527/C:\temp\dst_test_db;user=app;password=app;create=true
Dropping Table...
Creating Table...
Mar 13, 2010 10:01:00 PM GMT (Mar 13, 2010 4:01:00 PM CST) ok -> (Mar
13, 2010 10:01:00 PM GMT) Wrote: 1268517660000 Read: 1268517660000
Mar 13, 2010 11:01:00 PM GMT (Mar 13, 2010 5:01:00 PM CST) ok -> (Mar
13, 2010 11:01:00 PM GMT) Wrote: 1268521260000 Read: 1268521260000
Mar 14, 2010 12:01:00 AM GMT (Mar 13, 2010 6:01:00 PM CST) ok -> (Mar
14, 2010 12:01:00 AM GMT) Wrote: 1268524860000 Read: 1268524860000
Mar 14, 2010 1:01:00 AM GMT (Mar 13, 2010 7:01:00 PM CST) ok -> (Mar
14, 2010 1:01:00 AM GMT) Wrote: 1268528460000 Read: 1268528460000
Mar 14, 2010 2:01:00 AM GMT (Mar 13, 2010 8:01:00 PM CST) *FAILED -> (Mar
14, 2010 3:01:00 AM GMT) Wrote: 1268532060000 Read: 1268535660000
Difference: 3600000
Mar 14, 2010 3:01:00 AM GMT (Mar 13, 2010 9:01:00 PM CST) *FAILED -> (Mar
14, 2010 4:01:00 AM GMT) Wrote: 1268535660000 Read: 1268539260000
Difference: 3600000
Mar 14, 2010 4:01:00 AM GMT (Mar 13, 2010 10:01:00 PM CST) *FAILED -> (Mar
14, 2010 5:01:00 AM GMT) Wrote: 1268539260000 Read: 1268542860000
Difference: 3600000
Mar 14, 2010 5:01:00 AM GMT (Mar 13, 2010 11:01:00 PM CST) *FAILED -> (Mar
14, 2010 6:01:00 AM GMT) Wrote: 1268542860000 Read: 1268546460000
Difference: 3600000
Mar 14, 2010 6:01:00 AM GMT (Mar 14, 2010 12:01:00 AM CST) *FAILED -> (Mar
14, 2010 7:01:00 AM GMT) Wrote: 1268546460000 Read: 1268550060000
Difference: 3600000
Mar 14, 2010 7:01:00 AM GMT (Mar 14, 2010 1:01:00 AM CST) *FAILED -> (Mar
14, 2010 8:01:00 AM GMT) Wrote: 1268550060000 Read: 1268553660000
Difference: 3600000
Mar 14, 2010 8:01:00 AM GMT (Mar 14, 2010 3:01:00 AM CDT) ok -> (Mar
14, 2010 8:01:00 AM GMT) Wrote: 1268553660000 Read: 1268553660000
Mar 14, 2010 9:01:00 AM GMT (Mar 14, 2010 4:01:00 AM CDT) ok -> (Mar
14, 2010 9:01:00 AM GMT) Wrote: 1268557260000 Read: 1268557260000
Mar 14, 2010 10:01:00 AM GMT (Mar 14, 2010 5:01:00 AM CDT) ok -> (Mar
14, 2010 10:01:00 AM GMT) Wrote: 1268560860000 Read: 1268560860000
Dropping Table...
Database Mode: EMBEDDED
Local Time Zone: Central Standard Time
Using Embedded Driver: org.apache.derby.jdbc.EmbeddedDriver
Using Embedded URL: jdbc:derby:directory:C:\temp\dst_test_db;create=true
Dropping Table...
Creating Table...
Mar 13, 2010 10:01:00 PM GMT (Mar 13, 2010 4:01:00 PM CST) ok -> (Mar
13, 2010 10:01:00 PM GMT) Wrote: 1268517660000 Read: 1268517660000
Mar 13, 2010 11:01:00 PM GMT (Mar 13, 2010 5:01:00 PM CST) ok -> (Mar
13, 2010 11:01:00 PM GMT) Wrote: 1268521260000 Read: 1268521260000
Mar 14, 2010 12:01:00 AM GMT (Mar 13, 2010 6:01:00 PM CST) ok -> (Mar
14, 2010 12:01:00 AM GMT) Wrote: 1268524860000 Read: 1268524860000
Mar 14, 2010 1:01:00 AM GMT (Mar 13, 2010 7:01:00 PM CST) ok -> (Mar
14, 2010 1:01:00 AM GMT) Wrote: 1268528460000 Read: 1268528460000
Mar 14, 2010 2:01:00 AM GMT (Mar 13, 2010 8:01:00 PM CST) ok -> (Mar
14, 2010 2:01:00 AM GMT) Wrote: 1268532060000 Read: 1268532060000
Mar 14, 2010 3:01:00 AM GMT (Mar 13, 2010 9:01:00 PM CST) ok -> (Mar
14, 2010 3:01:00 AM GMT) Wrote: 1268535660000 Read: 1268535660000
Mar 14, 2010 4:01:00 AM GMT (Mar 13, 2010 10:01:00 PM CST) ok -> (Mar
14, 2010 4:01:00 AM GMT) Wrote: 1268539260000 Read: 1268539260000
Mar 14, 2010 5:01:00 AM GMT (Mar 13, 2010 11:01:00 PM CST) ok -> (Mar
14, 2010 5:01:00 AM GMT) Wrote: 1268542860000 Read: 1268542860000
Mar 14, 2010 6:01:00 AM GMT (Mar 14, 2010 12:01:00 AM CST) ok -> (Mar
14, 2010 6:01:00 AM GMT) Wrote: 1268546460000 Read: 1268546460000
Mar 14, 2010 7:01:00 AM GMT (Mar 14, 2010 1:01:00 AM CST) ok -> (Mar
14, 2010 7:01:00 AM GMT) Wrote: 1268550060000 Read: 1268550060000
Mar 14, 2010 8:01:00 AM GMT (Mar 14, 2010 3:01:00 AM CDT) ok -> (Mar
14, 2010 8:01:00 AM GMT) Wrote: 1268553660000 Read: 1268553660000
Mar 14, 2010 9:01:00 AM GMT (Mar 14, 2010 4:01:00 AM CDT) ok -> (Mar
14, 2010 9:01:00 AM GMT) Wrote: 1268557260000 Read: 1268557260000
Mar 14, 2010 10:01:00 AM GMT (Mar 14, 2010 5:01:00 AM CDT) ok -> (Mar
14, 2010 10:01:00 AM GMT) Wrote: 1268560860000 Read: 1268560860000
Dropping Table...
> Timestamps inserted with GMT calendar are 1 hour later when subsequently read
> with GMT calendar (Server Mode Only).
> -------------------------------------------------------------------------------------------------------------------
>
> Key: DERBY-4582
> URL: https://issues.apache.org/jira/browse/DERBY-4582
> Project: Derby
> Issue Type: Bug
> Affects Versions: 10.5.3.0
> Environment: Windows XP Professional Version 2002 Service Pack 3,
> Central Standard Time Zone (America/Chicago)
> Reporter: Keith Kruse
> Attachments: DerbyTest.java
>
>
> 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);
> ...
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