Selecting from sets or lists (set theory)
You can select or combine items from sets or lists. Note, multisets are currently not supported and all of the following filters imply uniqueness. That means that duplicate elements are removed from the result.
To get a unique set from a list:
To get a union (with duplicate elements removed) of two lists:
To get the intersection of two lists (unique list of all items that exist in both lists):
To get the difference of two lists (items in first list that don’t exist in second list):
To get the symmetric difference of two lists (items exclusive to each list):