about System columns : oid (emergency)

PGCluster team:

               How are you!

 

         Thank you for your patch and upgrade. Thank you for your work.

         In test. I find a question :

         PGCluster integration with PostgreSQL . after install PGCluster , PostgreSQL db is also all right. 

 

        In PostgreSQL defines a series of system columns in all tables,     one of these is oid.

  sometimes we need use:

SELECT *,oid FROM my_list;
or

DELETE FROM my_list WHERE oid = 3391264;

 

and so on SQL manipulate table. but now :

when we exec like above SQL will report :

ERROR:  column "oid" does not exist
ERROR:  column "oid" does not exist    

 

 I don't know this is question of PostgreSQL V8  or question of PGCluster integration PostgreSQL V8.

Why this system columns  is lost.

 

I am waiting for answer (emergency). Thanks very much.

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