Hi,
I have a list with titles in column one and properties in column two.
I want to use a function that returns as few properties as possible, but if I filter the original list for all returned properties every title has to be included at least once.
Example (titles are represented by the numbers; properties are represented by the letters):
1 A
1 B
1 C
2 A
2 Z
3 B
3 C
3 K
3 L
4 D
5 E
5 L
Return should be: A;D;L
Can someone help please?
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