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From "Rick Hillegas (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-3341) TABLE FUNCTION returning CHAR values does not return a correct value if the Java ResultSet class returns a value less than the length of the defined CHAR.
Date Mon, 03 Mar 2008 20:04:51 GMT

    [ https://issues.apache.org/jira/browse/DERBY-3341?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12574716#action_12574716
] 

Rick Hillegas commented on DERBY-3341:
--------------------------------------

I think that where we want to end up is that the value taken out of the ResultSet is run through
the normalize() method of the declared data type. Does that sound right? If so, is that behavior
declared anywhere in our user documentation? I can't find a corresponding description for
how the return values of scalar functions are normalized.

> TABLE FUNCTION returning CHAR values does not return a correct value if the Java ResultSet
class returns a value less than the length of the defined CHAR.
> ----------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-3341
>                 URL: https://issues.apache.org/jira/browse/DERBY-3341
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>            Reporter: Daniel John Debrunner
>             Fix For: 10.4.0.0
>
>         Attachments: derby_3341_test.txt
>
>
> Defining a column in the returned type as CHAR(10) requires that the returned value be
of length 10 characters.
> Defining a table function with a return type of:
>    returns TABLE  column0 char( 10 ), column1 char( 10 ))
> seems to just return whatever the Java ResultSet implementation handed it.
> My guess this is true for all variable length types, no casting of the value occurs when
it is returned to the SQL domain.
> Java single value functions and procedure out parameters do perform any required casting
to ensure the value is of the declared type.

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