The problem is not in the supportability, the problem lies in the fact that this driver is untested and doesn't work.
I was able to successfully do the trick with the ODBC driver for 10.2 but the 11g version doesn't work, it's missing
a symbol. For your information, this driver doesn't work even on OEL 5.2, which is supported. Just blasting people for using the unsupported combination will not change the fact that neither dg4odbc nor the ODBC
driver itself are working. Both are hopelessly broken.
If you ever asked yourself why is the adoption of 11g so slow, the answer is that is largely untested and significant parts of it don't work. I had a problem with fast switchover to standby which did work in one direction, but could not get back and I still have a problem with ODBC drivers which are programmed sloppily. I suggested my management not to go to 11g for at least another year. New features of 11g are fascinating but the software quality is appalling, to put it mildly. There are show stopping bugs all over the place.
Other than that, my understanding of this forum is that it is intended for a free form exchange of information. Blasting people for testing possibilities doesn't seem like the right answer to me. On the other hand, any
other answer would be inconsistent with Dan Morgan.