Error in row comparision on 1.8.2

I have installed GeoIP plugin and so far its working great. but today when i tried to compare graph of to country i got following error. see attached pic. could some one explain what is missing ?

GeoIP does not support yet row evolution - but will soon support it as we hope to include it in core

Is there an update on this?

What would be more a more interesting short term solution for me would be an option to disable Row Evolution in ViewDataTable. As far as I know there is currently no option to do this. This option would be useful when writing plugins with no Row Evolution support.

please create a bug report and if possible attach a patch :wink: