openGauss Dolphin Restrictions

The lite edition is not supported.
The Dolphin plug-in cannot be deleted.
The Dolphin plug-in can be created only in the B-compatible database.
The Dolphin plug-in needs to create data types and functions in schemas such as pg_catalog. Therefore, loading the Dolphin plug-in requires initial user permissions. openGauss automatically loads the Dolphin plug-in when the initial user or a user with the initial user permissions connects to B-compatible database for the first time. If a B-compatible database has never been connected by an initial user or a user with initial user permissions, it will not load the Dolphin plug-in.
All added or modified syntaxes in Dolphin cannot be viewed by running \h on the gsql client, and cannot be automatically supplemented on the gsql client.
The creation of the Dolphin plug-in deletes the functions and types with the same name required by the plug-in that exists in the database and the objects that previously depend on the plug-in.