SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Identifier dummy
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier one (alias A)
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier one
     TableJoin (children 1)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier A.dummy
        Identifier one.dummy