What is the best way to determine the timestamp of a row (ie. the most recent time when any of the columns of a row were modified).
Correct me if I am wrong, but I beleive a row does not have a timestamp, only individual columns have timestamps. So for instance if I need to know when a row was last modified, would I have to perform a get_slice and get all columns pertaining to that row, and then iterate through the columns to see which timestamp is the greatest(most recent). Thanks in advance for your help.
