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Posted to derby-dev@db.apache.org by "Kathey Marsden (JIRA)" <ji...@apache.org> on 2008/04/25 17:57:56 UTC
[jira] Updated: (DERBY-3646) Embedded returns wrong results when
selecting a blob column twice and using getBinaryStream()
[ https://issues.apache.org/jira/browse/DERBY-3646?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kathey Marsden updated DERBY-3646:
----------------------------------
Attachment: DoubleSelect.java
> Embedded returns wrong results when selecting a blob column twice and using getBinaryStream()
> ---------------------------------------------------------------------------------------------
>
> Key: DERBY-3646
> URL: https://issues.apache.org/jira/browse/DERBY-3646
> Project: Derby
> Issue Type: Bug
> Components: JDBC
> Affects Versions: 10.3.2.2, 10.4.1.3, 10.5.0.0
> Reporter: Kathey Marsden
> Attachments: DoubleSelect.java
>
>
> The attached program DoubleSelect selects a blob column twice and tries to access the blob column with getBinaryStream.
> With embedded the output is:
> 4 5 6 7 8 9 10 11 12 13
> 14 15 16 17 18 19 20 21 22 23
> I am done
> Two things seem to be happening with embedded.
> 1) Both getBinaryStream() calls are returning the same stream.
> 2) The second getBinaryStream() call throws away 4 bytes.
> With client the output is:
> Exception in thread "main" java.io.IOException: The object is already
> closed.
> at
> org.apache.derby.client.am.CloseFilterInputStream.read(CloseFilterInputStream.java:50)
> at DoubleSelect.printNextTen(DoubleSelect.java:53)
> at DoubleSelect.main(DoubleSelect.java:43)
> 0 1 2 3 4 5 6 7 8 9
> So with client it looks like the second getBinaryStream() call closes
> the first stream but then returns the right result for the second stream.
> Perhaps embedded should behave the same as client or perhaps the query should just work. Regardless embedded should not return wrong results.
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