Dude.db sourceIDandTime help

Hi,

Please could someone give a breakdown of the sourceIDandTime fields in each of the chart_values_x tables
I would like to prune our DB to only include the past 6 months worth of chart info to keep the DB size down.

tnx in advance!

bump :open_mouth:

A month later since it was posted & still not reply?! :frowning:

Why not let the server to do that automatically: http://wiki.mikrotik.com/wiki/Manual:The_Dude_v6/Server_settings#Chart ?