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From "Kathey Marsden (JIRA)" <derby-...@db.apache.org>
Subject [jira] Created: (DERBY-525) getAsciiStreamshould replace non-ASCII characters with 0x3f, '?' to match embedded
Date Fri, 19 Aug 2005 22:49:54 GMT
getAsciiStreamshould replace non-ASCII characters with 0x3f, '?'  to match embedded
-----------------------------------------------------------------------------------

         Key: DERBY-525
         URL: http://issues.apache.org/jira/browse/DERBY-525
     Project: Derby
        Type: Bug
  Components: Network Client  
    Versions: 10.1.1.0, 10.1.1.1, 10.2.0.0    
    Reporter: Kathey Marsden


When calling Clob.getAsciiStream or ResultSet.getAsciiStream if 
the column type is a character type or a CLOB, then any out of 
range character (to the ASCII set) needs to be replaced by 0x3f 
('?', question mark). ASCII is defined as 8 bit characters, 
thus Unicode Characters in the range 0x0000 to 0x00ff are 
mapped to ASCII characters 0x00 to 0xff, and Unicode characters 
in the range 0x0100 to 0xffff are mapped to 0x3f

By code inspection:

client code in 
org.apache.derby.client.am.ResultSet

embedded in 
org.apache.derby.impl.jdbc.ReaderToAscii



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