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v4.2
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    v4.2

      intersection()

      Function intersection() calculates the common elements of two arrays and returns them as a new array, namely, returns the intersection of these two arrays (repeated elements are allowed in the intersection).

      Arguments:

      • 1st array <array>
      • 2nd array <array>

      Returns:

      • Intersection <array>

      If the two arrays are non-homologous, Cartesian Product will be applied when the function is called in a WITH clause, or aliases will be trimmed when called in a RETURN clause.

      Common Usage

      Example: find the common neighbors of Card CA001 and CA002, and return as array

      khop().src({_id == "CA001"}).depth(1) as n1
      khop().src({_id == "CA002"}).depth(1) as n2
      with collect(n1) as a1, collect(n2) as a2
      return intersection(a1, a2)
      
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