pq13636.st  WALKBACK WHEN TRYING TO RETRIEVE MORE THAN 64K OF DATA FROM AN 
                ORACLE LONG RAW COLUMN

The length field on a bind call (obndra function) is only two bytes
and you cannot represent a value > 64K with two bytes.   
The walkback occurs because the method                                         
AbtOracleRow>>initializeColumnLengths attempts to stuff a length 
that requires four bytes to represent into a two byte area.  


File in pq13636.st after applying fixpack v4.02b to fix the problem.
Note: This has been fixed in v4.5