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From "Kristian Waagan (JIRA)" <j...@apache.org>
Subject [jira] Reopened: (DERBY-4491) The network client changes UDTs into Strings and returns their type as LONGVARBINARY.
Date Tue, 02 Mar 2010 16:41:27 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4491?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kristian Waagan reopened DERBY-4491:
------------------------------------


Reopening because it looks like NetDatabaseMetadata.serverSupportsUDTs returns the wrong value
(see patch derby-4491-02-aa-supportsUDTs.diff).
I plan to commit this patch shortly, and I will also set the fix version of this issue to
10.6.

> The network client changes UDTs into Strings and returns their type as LONGVARBINARY.
> -------------------------------------------------------------------------------------
>
>                 Key: DERBY-4491
>                 URL: https://issues.apache.org/jira/browse/DERBY-4491
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: 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
>            Reporter: Rick Hillegas
>            Assignee: Rick Hillegas
>         Attachments: derby-4491-01-ab-networkTransport.diff, derby-4491-01-ad-networkTransport.diff,
derby-4491-02-aa-supportsUDTs.diff
>
>
> This is a pre-existing bug which seems to have been with Derby since the beginning. Some
of the columns in the system tables (e.g., SYS.SYSALIASES.ALIASINFO) contain objects. If you
select these columns:
> 1) In the embedded client you will get the correct results. You will get the objects
in these columns. In addition, the ResultSetMetaData for these columns will correctly report
that the columns have type JAVA_OBJECT and will give a reasonable type name (the class name
for the object in the column).
> 2) However, in the network client, you will get the wrong results. ResultSet.getObject()
will return Strings rather than the original objects. In addition, the ResultSetMetaData for
these columns will incorrectly report that their type is LONGVARBINARY.

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