Modify Nuxeo Query Maker

Nuxeo suffers of huge performance problem while the repository is growing up :
the navigation becomes more and more difficult and the problem origin is how we are using NX_ALLOWED_ACCESS stored procedure : this and function is called on each line of hierarchy table and the query planner of the database never build subqueries, even if we set a huge cost to this stored procedure.

So we have to manually build a sub- select for the user query and on this result run NX_ALLOWED_ACCESS.