What is the urgency around this, also - what project is this related to? I can't see any linked tickets here to give us any background as to the UI reason for this change.
@ken What about the support for date intervals? Currently, the following condition is not supported in PQL:
end_time >= "2016-03-01T00:00:00.000Z" and end_time < "2016-03-15T00:00:00.000Z"
Should I create a separate issue for that?
Date comparison should work in AST, sounds like its a bug if it doesn't work - yes, raise another ticket.