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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-4245) Sorting a table containing a CLOB fails after upgrade to 10.5
Date Thu, 18 Jun 2009 09:51:09 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12721147#action_12721147
] 

Knut Anders Hatlen commented on DERBY-4245:
-------------------------------------------

> On my system it takes around 130 seconds, where around half of the time is spent inserting
test data. I'll see if I can reduce the number of rows inserted further.

I think if you lower derby.storage.sortBufferMax, you'll see the bug with less rows in the
table.

> 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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