There's a place near me that does a couple of Indian pizzas, and actually uses like a different flatbread thing for those than for their other pizzas.
While I like pineapple on pizza (and we usually add something to Hawaiian pizza when we get it) I agree it's unusual to see a menu configuration featuring it, that's not Hawaiian.
It's really common here. The basic pizzas are pepperoni, Hawaiian, meat lovers and supreme.
Supreme is a little bit of everything including pineapple. Pretty much any pizza chain offers those pizzas, gourmet places maybe because of the kids.
Also Hawaiian burgers (has pineapple) or added to egg and/or bacon in said burger which was what mine was the other nights.
It's a very small chain with 3 locations Auckland (our biggest city), Dunedin (small city) and Mosgiel (a small town outside Dunedin).
Pizzas, Burgers and waffles. Seems an odd selection.
The butter chicken pizza is also unusual but you see it in pies sometimes.