So has this warning only been resolved for 7.3.1 as per:
[fix] SVY-6185 Warning log message "Cannot sort on dataprovider..." appears in Server Log even when no sorting is being performed by our code or by the user
I'm on 6.1.6 (don't laugh) and i'm seeing the same thing:
TABLE_VIEW, several columns that have a dataprovider as a calc over a relation, the warning is displayed (a kajillion times, or is it cajillion?) as soon as the form is displayed or refreshed. The initialSort is a regular (non-calc'ed) number field in the same table as the forms datasource.
Even when you remove the initialSort on the form the warning still fires. Since this warning is being written out to the java console, performance is affected.
Will this warning be subdued server side in 6.1.6?