SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Function less (children 1)
     ExpressionList (children 2)
      Identifier x
      Literal \'aa\'
    Function greater (children 1)
     ExpressionList (children 2)
      Identifier x
      Literal \'aa\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier strings_00469
