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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-6099) Some DataTypeDescriptor methods may be missing Blob and Clob
Date Tue, 05 Mar 2013 19:46:13 GMT

    [ https://issues.apache.org/jira/browse/DERBY-6099?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13593821#comment-13593821
] 

Knut Anders Hatlen commented on DERBY-6099:
-------------------------------------------

isCharacterType(int) and isBinaryType(int) left out CLOB and BLOB intentionally, according
to their javadoc comments.

	 * <p><strong>Note:</strong> <code>CLOB</code> is not compatible
with
	 * <code>String</code>. See tables B-4, B-5 and B-6 in the JDBC 3.0
	 * Specification.

	 * <p><strong>Note:</strong> <code>BLOB</code> is not compatible
with
	 * <code>byte[]</code>. See tables B-4, B-5 and B-6 in the JDBC 3.0
	 * Specification.
                
> Some DataTypeDescriptor methods may be missing Blob and Clob
> ------------------------------------------------------------
>
>                 Key: DERBY-6099
>                 URL: https://issues.apache.org/jira/browse/DERBY-6099
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.8.3.0
>            Reporter: Kathey Marsden
>
> When looking at DERBY-6096, I noticed there are other methods that likely should consider
CLOB and/or BLOB, for example  isCharacterType(int jdbcType) does not include CLOB, isBinaryType
doesn't include BLOB; normalize() has some code that is LONGVARCHAR /LONGVARBINARY specific
but that might be no longer relevant.  
> I do see quite a few bugs in Jira where Blob or Clob was left out of this method or that
in this file, so it could probably stand a full code review.

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