SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 3)
    Function array (alias arr1) (children 1)
     ExpressionList
    Function array (alias arr2) (children 1)
     ExpressionList
    Function round (children 1)
     ExpressionList (children 2)
      Function arrayJaccardIndex (children 1)
       ExpressionList (children 2)
        Identifier arr1
        Identifier arr2
      Literal UInt64_2