SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 3)
    Function toDecimal64 (alias x) (children 1)
     ExpressionList (children 2)
      Function toDecimal64 (children 1)
       ExpressionList (children 2)
        Literal \'92233720368547758.0\'
        Literal UInt64_1
      Literal UInt64_2
    Function toInt64 (children 1)
     ExpressionList (children 1)
      Identifier x
    Function toInt64 (children 1)
     ExpressionList (children 1)
      Function negate (children 1)
       ExpressionList (children 1)
        Identifier x