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From "Mamta A. Satoor (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (DERBY-2725) If all the operands involved in collation operation have a collation derivation of NONE, then Derby should throw an exception for that as per the SQL standards.
Date Fri, 06 Jul 2007 11:19:04 GMT

     [ https://issues.apache.org/jira/browse/DERBY-2725?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mamta A. Satoor resolved DERBY-2725.
------------------------------------

       Resolution: Fixed
    Fix Version/s: 10.4.0.0
                   10.3.1.1

Merged the fix from main(revision 553834) into Derby 10.3.1.1 codeline (revision 553837)

> If all the operands involved in collation operation have a collation derivation of NONE,
then Derby should throw an exception for that as per the SQL standards.
> ----------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-2725
>                 URL: https://issues.apache.org/jira/browse/DERBY-2725
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.3.0.0, 10.3.1.1, 10.4.0.0
>            Reporter: Mamta A. Satoor
>            Assignee: Mamta A. Satoor
>             Fix For: 10.3.1.1, 10.4.0.0
>
>
> The collation methods in Derby should follow the rules defined by SQL spec in Section
9.13 Collation determination Syntax Rules 2 and 3e. 
> According to those rules, 
> 1)****at least one operand**** shall have a declared type collation (that means if the
comparison is sysChar1|userChar1 > sysChar2|userChar2, then such a comparison will fail
because both sides of > operator have collation derivation of NONE. 
> Derby doesn't yet enforce this rule of having atleast one operand with non-NONE collation
derivation when working with collation operation. 

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