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From "Ken Johanson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-2235) Server doesnt support timestamps with timezone
Date Thu, 30 Aug 2007 18:58:30 GMT

    [ https://issues.apache.org/jira/browse/DERBY-2235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12523915

Ken Johanson commented on DERBY-2235:

>if the string '2007-01-03 04:13:43' is converted to a TIMESTAMP in SQL then it will always
represent '2007-01-03 04:13:43' 

In what timezone? GMT? The server's? 

I suspect (admittedly not having looked at the code nor tried Derby lately) the actual behavior
is that is will always be treated as the server's timezone (if using a SimpleDateFormat and
iso8601 format string, and not overriding the default timezone, which DateFormat uses from

As I recall tz-less strings SHOULD (or MUST) be interpreted as the being in the TZ of the
receiving host (the server in this case), so if the above is true then TZ-less strings are
working okay.

For datetime and possibly timestamp, if a zone-offset IS provided in the string I would argue
that the server should have the option to accept this, even if it will not store the TZ info.

> Server doesnt support timestamps with timezone
> ----------------------------------------------
>                 Key: DERBY-2235
>                 URL: https://issues.apache.org/jira/browse/DERBY-2235
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions:
>            Reporter: Ken Johanson
>            Priority: Minor
> DML with datetime literals having timzone offset data (ISO-8601):
> update tbl set dt1 = '2007-01-03 04:13:43.006 -0800'
> Causes:
> SQLException: The syntax of the string representation of a datetime value is incorrect.
> Error: -1 SQLSTATE: 22007
> I believe that even if the storage does not (does it?) support timezone storage, the
input of a TZ could be normalized (offset applied) to the default TZ.

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