Problem
Write a SQL query using window functions to identify the top three highest-spending users within each geographic region over the last 30 days.
Practicing as: Data Scientist interview at PayPalHi, I'll play your PayPal interviewer for the Data Scientist role. Candidates describe these interviews as mixed and moderately difficult, so expect me to be professional and fair. Take your time with the question above and answer like we're in the room.
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