> We could definitely do this by using the timeStamp property on DataValue > and let the user specify a "since" date in the export GUI. But the user is > already specifying which months to export data for, typically only the last > month so I am not sure how much we would save on the file size... >
I was suggesting times when only few datavalues were changed in a given period. Say for the last year's data, we changed only a few values and the last month's data was not exported earlier. I would then need to export 13 month's of data, whereas we can just export those diff datavalues (changes from last year and this month's data)
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