Currently, if a SP is BF-aborted, the SP will retry.

If no data has been sent back (say the SP contains only UPDATE/INSERT), then it is ok to retry the SP, since it will have been rolled back.

The problem occurs if data has been sent back.  The client will already have received data, but the client has no way of knowing that the data is incomplete.  Also, the client will receive more result sets than expected, since the entire SP is retried.

The proposal is to not allow the SP to be retried if data has been sent back to the client. This will allow us to return an error and for any returned data to be discarded.