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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (DERBY-5537) Casting to a shorter string type does not warn about truncation
Date Fri, 11 May 2012 13:58:50 GMT

     [ https://issues.apache.org/jira/browse/DERBY-5537?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Knut Anders Hatlen resolved DERBY-5537.
---------------------------------------

    Resolution: Duplicate

Resolving as duplicate of DERBY-129.
                
> Casting to a shorter string type does not warn about truncation
> ---------------------------------------------------------------
>
>                 Key: DERBY-5537
>                 URL: https://issues.apache.org/jira/browse/DERBY-5537
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.8.2.2
>            Reporter: Knut Anders Hatlen
>              Labels: derby_triage10_9
>         Attachments: warn.diff
>
>
> SQL:2003, part 2, 6.12 <cast specification> specifies that a truncation warning
should be raised when casting from one (character or binary) string data type to another.
Derby does truncate, but it doesn't raise a warning:
> ij> values cast('abc' as char(2));
> 1 
> --
> ab
> 1 row selected
> ij> values cast(x'cafebabe' as char(2) for bit data);
> 1   
> ----
> cafe
> 1 row selected
> We should generate a warning in order to be compliant.

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