Creating local database objects in impresario_cci

Hi,

 Does anyone know how Tessitura handles local objects (that we would create) in impresario_cci? Does it follow the same guidelines as creating local database objects in impresario? Specifically,

1. Does it follow the same naming conventions (IE. starting with LP_ or LT_, etc.)?
2. Will they affect future upgrades? Or will they just come along with the upgrade process?

 I would like to create a local stored procedure in impresario_cci that will clean up old extractions (code was taken from another forum). I want to be sure that this is allowed and will not affect future upgrades.

Much thanks!
Debbie