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Date: Tue, 28 Aug 2007 09:23:31 -0700 (PDT)
From: "Kathey Marsden (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Updated: (DERBY-2910) SimpleStringOperatorNode in it's
 bindExpression method generates a character string CAST if required but
 does not set the correct collation.
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     [ https://issues.apache.org/jira/browse/DERBY-2910?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kathey Marsden updated DERBY-2910:
----------------------------------

    Attachment: derby-2910_stat.txt
                derby-2910_diff.txt

Here is an updated patch with comments and test changes suggested by Dan.  I will commit this afternoon if I hear no objections.

Kathey


> SimpleStringOperatorNode in it's bindExpression method generates a character string CAST if required but does not set the correct collation.
> --------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-2910
>                 URL: https://issues.apache.org/jira/browse/DERBY-2910
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.3.1.4, 10.4.0.0
>            Reporter: Mamta A. Satoor
>            Assignee: Kathey Marsden
>         Attachments: derby-2910_diff.txt, derby-2910_diff.txt, derby-2910_stat.txt, derby-2910_stat.txt
>
>
> Following query should run into error if run in a territory based database 
> SELECT TABLENAME FROM SYS.SYSTABLES WHERE UPPER(CURRENT_DATE) = TABLENAME;
> When a CAST node is generated on top of CURRENT_DATE to create a character string type, we do not set the collation of that character string type and hence it always ends up getting the default which is collation derivation IMPLICIT and collation type UCS_BASIC. That does not sound right. 
> There might be other places where we generate CAST node to create a character string type. We should check if the collation is set correctly for them.

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