SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function avg (children 1)
     ExpressionList (children 1)
      Identifier o_totalprice
   TablesInSelectQuery (children 3)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier orders
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier customer
     TableJoin
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier nation
     TableJoin
   Function and (children 1)
    ExpressionList (children 3)
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier c_custkey
       Identifier o_custkey
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier c_nationkey
       Identifier n_nationkey
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier n_name
       Literal \'FRANCE\'
