SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 2)
    Identifier color
    Identifier timestamp
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier order_test1
   ExpressionList (children 2)
    Identifier color
    Identifier timestamp
   ExpressionList (children 2)
    OrderByElement (children 1)
     Identifier color
    OrderByElement (children 1)
     Identifier timestamp
