I'm using delimited text driver.
I'm planning to reorder my policies and rules.
Can I use if-op-att changing inside publisher input transform policy?
Or do I have to query destination attribute to see if attribute is changing?

I'm trying to generate and update users email-address when ever given
name, initials or surname is changing.

And I like to do this on input transform policy and let driver filter
decide if update is needed on idm or not.