Sybase right truncation issue running saved models in PA

I'm getting the following error when running saved models in PA on some datasets:

I am getting this primarily when running the scoring function for custom R algorithms.  The scoring function works on some datasets but not others, it doesn't seem to matter how many/what type of predictors are included (numeric, character).  I'm not sure what is being truncated--is it a value within a field or the model definition itself or a field name?

I found online a solution to this error in Sybase:

[CR #594620] When inserting data from Replication Server to Sybase IQ 15.0 and later using the insert-location, the right truncation of string data error may occur.

Workaround: On Sybase IQ system, apply this command:

set option public.STRING_RTRUNCATION = “OFF” 

source: http://infocenter.sybase.com/help/index.jsp?topic=/com.sybase.infocenter.dc01232.1550/html/rsrbunix/rsrbunix57.htm

But how do I access the Sybase system that PA is using to change this setting?

Anyone else seeing this error?