GRANT EXECUTE on a Function - Aster Execution Engine

To give a user or group the right to run a function in an Aster instance, an Aster database administrator or the function's owner must use the GRANT EXECUTE command that gives the user the privilege for the specific function:

GRANT EXECUTE [ PRIVILEGE ]
   ON FUNCTION [schemaname.]funcname
   TO { username | GROUP rolename | PUBLIC } [, ...]

There is no support for delegating privilege management, because the WITH GRANT OPTION clause is not supported.