I have two date properties on my story cards - 'Target Completion Date' - when I initially intended to get this work finished - and 'Estimated Completion Date' - when I currently think this might be complete.

I'd like to get a list of all of the cards where the 'Estimated Completion Date' is after the 'Target Completion Date'.

I can do this, using the MQL conditions in the Advanced Filter.  Note that I need to use the PROPERTY keyword in front of the second property being compared.