Zipcode Not In Address Module!?

[theloglizard]

I took a look at gazetteer.data_model._variables when using the address comparison module, and the variables made sense as address components, but there did not appear to be a zipcode/postal code entry in there, as such. Do I have this right, or perhaps I am just missing something? I can create a separate variable, easily enough, and my intuition suggests it provides discrimination value, but perhaps you know otherwise? I'm also scratching my head about 5 and 9 digit zip codes and was kind of hoping that was built-in, though I expect some sort of 'has missing' interaction variable would be the way to go.

Thanks Peter Below is what looked like the address components in gazetteer.data_model._variables

=========================================== ambiguous same name type? po box intersection address number street direction street name street type occupancy type occupancy id building name box group type box group id box type box id street direction A street name A street type A street direction B street name B street type B address number street direction street name street type occupancy type occupancy id building name box group type box group id box type box id street direction A street name A street type A street direction B street name B street type B full string