SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function toUInt64OrDefault (children 1)
     ExpressionList (children 2)
      Literal \'1xx\'
      Function CAST (children 1)
       ExpressionList (children 2)
        Literal UInt64_2
        Literal \'UInt64\'
