How to aggregate the second and third purchase amounts based on the first purchase date.
Fixed on each customer on their first purchase date, and calculate the total grand of the second and third purchase amounts.
For example: A and B both buy on 2022/4,the date column 2022/4 will only count A and B, for the 2nd time to buy: A on 2022/5, B on 2022/5, so the total times are 2. the 3rd time of A is on 2022/7 and B does not buy the 3rd time, so the 3rd time is count 1 only, etc.
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