I am trying to pull a list of constituents who have purchased 3 or more productions out of 9 specific productions. These need to be PAID orders, not comps of any kind. These constituents can have ANY combination grouping of 3 of the 9 productions. Any help is appreciated. This is cross posted in other forums as well.
For Example, out of the multiple possibilities of 9 productions, I would want to see a constituent record with purchases to production 1, 4, and 9; or 2, 3, and 7, etc.