I have a CSV file and has 100+ columns and 10,000+ lines. I like to find unique key from the data. Key is formed by mixing multiple columns. For example columns 1,2,3,12,14 could form a unique key for the given data. How would I find such thing? I can take all the columns and that will make it unique, but I like to do with minimum number of columns possible.

Thanks.

In reply to Finding Keys from data by aartist

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