I'm on ubuntu server 12.04 LTS, and here is My issue : 

I deleted a custom field x_entrpt, via the configuration module, I was automatically loged out by the server.

The FACT is : the field x_entrpt still exist on the view, so it generated xml architecture error, and now I am enable to connect to my openerp erp account via web client.

The field deleted still exist on the res_users view, so now I decided to enter the res_users view, from pgsql, there is a table ir_ui_view, it contains all the views of the current database, I need to access the views table, and delete from the res_users view the field x_entrpt.

I need to know the sql query to do that. 

Is this the correct solution for this kind of problem ?

thanks.