Problem
Calculate the total value of sales and the number of unique paying customers, grouped and sorted in descending order by payment type.
Practicing as: Data Engineer interview at Meta LogisticsHi, I'll play your Meta Logistics interviewer for the Data Engineer role. Candidates describe these interviews as mostly positive and moderately difficult, so expect me to be friendly and conversational. Take your time with the question above and answer like we're in the room.
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