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From "Kathey Marsden (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-2972) Update or select with function in the where clause causes with TERRITORY_BASED collation fails with ERROR 42818: Comparisons between 'VARCHAR' and 'VARCHAR' are not supported.
Date Tue, 04 Sep 2007 15:46:45 GMT

    [ https://issues.apache.org/jira/browse/DERBY-2972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12524764
] 

Kathey Marsden commented on DERBY-2972:
---------------------------------------

I am having trouble finding this rule (From the wiki page) in the SQL Spec.  Can someone point
me to the section where this is defined?

7)For user defined functions' that return character string type, the return type's collation
will have the same collation as of the character set of the schema that the function is defined
in. The collation derivation will be implicit.

Thanks 

Kathey


> Update or select with function in the where clause causes with TERRITORY_BASED collation
fails with ERROR 42818: Comparisons between 'VARCHAR' and 'VARCHAR' are not supported.
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-2972
>                 URL: https://issues.apache.org/jira/browse/DERBY-2972
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.4.0.0
>            Reporter: Kathey Marsden
>            Assignee: Kathey Marsden
>         Attachments: derby-2972_diff.txt, derby-2972_stat.txt
>
>
> The following update fails with ERROR 42818
> ij> update testing set a = PADSTRING('aa',2024) where a = PADSTRING('a',2024);
> ERROR 42818: Comparisons between 'VARCHAR' and 'VARCHAR' are not supported.
> See full script below 
> onnect 'jdbc:derby:nordb;territory=no_NO;collation=TERRITORY_BASED';
> CREATE FUNCTION  PADSTRING (DATA VARCHAR(32000), LENGTH INTEGER) RETURNS VARCHAR(32000)
EXTERNAL NAME 'org.apache.derbyTesting.functionTests.util.Formatters.padString' LANGUAGE JAVA
PARAMETER STYLE JAVA;
> create table testing 
> 	(a varchar(2024), b varchar(1024), c varchar(1024), d varchar(2048), e varchar(300))
;
> -- insert 9 rows into the table
> insert into testing values (PADSTRING('1',2024),  PADSTRING('2',1024), 
>        PADSTRING('3',1024), PADSTRING('4',2048),  PADSTRING('5',300));
> insert into testing values (PADSTRING('10',2024),  
>        PADSTRING('20',1024), PADSTRING('30',1024), 
>        PADSTRING('40',2048), PADSTRING('50',300));
> insert into testing values (PADSTRING('100',2024),  
>        PADSTRING('200',1024), PADSTRING('300',1024), 
>        PADSTRING('400',2048), PADSTRING('500',300));
> insert into testing values (PADSTRING('1000',2024),  
>        PADSTRING('2000',1024), PADSTRING('3000',1024), 
>        PADSTRING('4000',2048), PADSTRING('5000',300));
> insert into testing values (PADSTRING('10000',2024),  
>        PADSTRING('20000',1024),	PADSTRING('30000',1024), 
>        PADSTRING('40000',2048), PADSTRING('50000',300));
> insert into testing values (PADSTRING('100000',2024), 
>        PADSTRING('200000',1024), PADSTRING('300000',1024), 
>        PADSTRING('400000',2048), PADSTRING('500000',300));
> insert into testing values (PADSTRING('1000000',2024), 
>        PADSTRING('2000000',1024), PADSTRING('3000000',1024), 
>        PADSTRING('4000000',2048), PADSTRING('5000000',300));
> insert into testing values (PADSTRING('10000000',2024), 
>        PADSTRING('20000000',1024), PADSTRING('30000000',1024), 
>        PADSTRING('40000000',2048), PADSTRING('50000000',300));
> insert into testing values (PADSTRING('100000000',2024), 
>        PADSTRING('200000000',1024), PADSTRING('300000000',1024), 
>        PADSTRING('400000000',2048), PADSTRING('500000000',300));
> update testing set a = PADSTRING('aa',2024) where a = PADSTRING('a',2024);

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