SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function sipHash64Keyed (children 1)
     ExpressionList (children 2)
      Function tuple (children 1)
       ExpressionList (children 2)
        Function CAST (children 1)
         ExpressionList (children 2)
          Literal \'1\'
          Literal \'UInt64\'
        Function CAST (children 1)
         ExpressionList (children 2)
          Literal \'2\'
          Literal \'UInt64\'
      Function map (children 1)
       ExpressionList (children 4)
        Literal Array_[UInt64_0]
        Literal UInt64_1
        Literal Array_[UInt64_2]
        Literal UInt64_3