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From "Suran Jayathilaka (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-3741) SQL LENGTH function materializes CLOB into memory
Date Mon, 11 Aug 2008 17:58:46 GMT

     [ https://issues.apache.org/jira/browse/DERBY-3741?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Suran Jayathilaka updated DERBY-3741:
-------------------------------------

    Attachment: derby-2741-mergeto-10.4.diff

This patch, derby-2741-mergeto-10.4.diff, adds the changes for derby-3741 to the 10.4 code
branch.

It incorporates changes from trunk svn revisions 
674565 : SQLChar file reformat
680478
682693.

The commands used for merging are as follows. (on Windows)
---------------------------------------------------------------------------------------------------------------------------
svn merge -r 674564:674565 https://svn.apache.org/repos/asf/db/derby/code/trunk/

svn merge -r 680477:680478 https://svn.apache.org/repos/asf/db/derby/code/trunk/

svn revert java\testing\org\apache\derbyTesting\functionTests\tests\memory\ClobMemTest.java

svn add java\testing\org\apache\derbyTesting\functionTests\tests\memory\ClobMemTest.java

svn merge -r 682692:682693 https://svn.apache.org/repos/asf/db/derby/code/trunk/

svn revert java\testing\org\apache\derbyTesting\functionTests\tests\memory\MultiByteClobTest.java

svn add java\testing\org\apache\derbyTesting\functionTests\tests\memory\MultiByteClobTest.java
----------------------------------------------------------------------------------------------------------------------------------

When running tests (suites.All), there was a lot of test failures. 
e.g.
jdbcapi/AuthenticationTest






> SQL LENGTH function materializes CLOB into memory
> -------------------------------------------------
>
>                 Key: DERBY-3741
>                 URL: https://issues.apache.org/jira/browse/DERBY-3741
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.3.3.0, 10.4.1.3, 10.5.0.0
>            Reporter: Kathey Marsden
>            Assignee: Suran Jayathilaka
>         Attachments: ClobMemTest.java, derby-2741-mergeto-10.4.diff, derby-3741-1.diff,
derby-3741-2.diff, derby-3741-multibyte_test.diff, derby-3741_multibyteclobtest_update_diff.txt,
LargeLengthClob.zip
>
>
> Similar to DERBY-3732, the SQL LENGTH function also materializes CLOB's into memory.
 See attached repro.

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