Compare arrays for equality, ignoring order of elements

Question

I have a table with 4 array columns.. the results are like:

ids       signed_ids   new_ids   new_ids_signed
{1,2,3} | {2,1,3}    | {4,5,6} | {6,5,4}
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Answer 1

If your arrays have no duplicates and are of the same dimension:

• use array contains @>
• AND array_length where the length must match the size you want on both sides