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From "Kristian Waagan (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-4245) Sorting a table containing a CLOB fails after upgrade to 10.5
Date Tue, 16 Jun 2009 12:03:08 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12720087#action_12720087
] 

Kristian Waagan commented on DERBY-4245:
----------------------------------------

Code inspection shows that getting a BufferedInputStream in this case is correct. It comes
from StreamFileContainer.open, and the source is a file. The merge sort (MergeSort.openSortScan)
uses stream containers.
The default buffer size is 16 KB (RawStoreFactory.STREAM_FILE_BUFFER_SIZE_DEFAULT).

> Sorting a table containing a CLOB fails after upgrade to 10.5
> -------------------------------------------------------------
>
>                 Key: DERBY-4245
>                 URL: https://issues.apache.org/jira/browse/DERBY-4245
>             Project: Derby
>          Issue Type: Bug
>          Components: Store
>    Affects Versions: 10.5.1.1
>            Reporter: Knut Anders Hatlen
>            Assignee: Kristian Waagan
>             Fix For: 10.5.1.2, 10.6.0.0
>
>         Attachments: derby-4245-0a-preview.diff, derby-4245-1a-test.diff, derby-4245-1b-test.diff,
derby-4245-1c-test.diff, derby-4245-2a-sqlclob_fix.diff, derby-4245-3a-unread_bytes_fix.diff,
MixedVersionClob.java
>
>
> When sorting a table containing a CLOB column in a database that has been soft-upgraded
from 10.4.2.0 to 10.5.1.1, the query fails with a NullPointerException.
> Reported on derby-user: http://mail-archives.apache.org/mod_mbox/db-derby-user/200905.mbox/%3ckk5ivy.tcwvy@email.bg%3e

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