Session Authorization
The set session authorization statement allows a user with security or dbadmin to set the effective user for the current session.
The set session statement must be issued before a transaction commences and the settings apply until that session is completed.
The set session authorization options are as follows:
username
The user name specified
user | current user | session user
The current user of the session (Ingres user)
system_user
The operating system user who started the session
initial_user
The Ingres user ID that started the session