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https://issues.apache.org/jira/browse/DERBY-4611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12971652#action_12971652
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Greg Tarr commented on DERBY-4611:
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Is there an ETA on timezone support is going to be available in Derby? In
particular it would be nice to have the equivalent of Oracle's timestamp with
timezone and associated support functions.
> Add new datatypes: TIME WITH TIMEZONE and TIMESTAMP WITH TIMEZONE
> -----------------------------------------------------------------
>
> Key: DERBY-4611
> URL: https://issues.apache.org/jira/browse/DERBY-4611
> Project: Derby
> Issue Type: Improvement
> Components: SQL
> Reporter: Rick Hillegas
>
> The SQL Standard defines two timezone-stamped datatypes: TIME WITH TIMEZONE
> and TIMESTAMP WITH TIMEZONE. Relevant sections in part 2 of the Standard
> include 4.6 (Datetimes and intervals), 6.1 (<data type>), 6.12 (<cast
> specification>), and 8.2 (<comparison predicate>).
> I think that we could implement these two datatypes today. Note that there is
> a general cleanup of the Java datetime classes underway in JSR 310 (
> https://jsr-310.dev.java net/ ), which is supposed to be delivered in Java 7.
> It's possible that the next rev of JDBC will provide better support for these
> datatypes. However, there is currently no JSR covering the next JDBC
> increment.
> For the moment, the existing JDBC TIME and TIMESTAMP types would have to be
> overloaded to cover the new datatypes. Disambiguating the WITH TIMEZONE
> variants might have to be accomplished by parsing the type names returned by
> ResultSetMetaData.getColumnTypeName() and
> DatabaseMetaData.getColumns().TYPE_NAME.
> Note also that DRDA does not provide WITH TIMEZONE variants of its TIME and
> TIMEZONE types. Some creativity would be required here too.
> Users are welcome to vote for this issue in order to boost its chance of
> being addressed.
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