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How to get unique 2-dimentional array?

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So i was able to successfully test this

It basically gets the unique list from one field, but what if you need 3 fields and you have to get the unique set of records from that list.

From
1 A 0
1 A 0
1 B 1
1 B 1
2 C 0
2 C 0

Into
1 A 0
1 B 1
2 C 0

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