MySQL 9.2 Release Notes
        
          Given a schema name, this procedure creates a synonym schema
          containing views that refer to all the tables and views in the
          original schema. This can be used, for example, to create a
          shorter name by which to refer to a schema with a long name
          (such as info rather than
          INFORMATION_SCHEMA).
- in_db_name VARCHAR(64): The name of the schema for which to create the synonym.
- in_synonym VARCHAR(64): The name to use for the synonym schema. This schema must not already exist.
mysql> SHOW DATABASES;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sys                |
| world              |
+--------------------+
mysql> CALL sys.create_synonym_db('INFORMATION_SCHEMA', 'info');
+---------------------------------------+
| summary                               |
+---------------------------------------+
| Created 63 views in the info database |
+---------------------------------------+
mysql> SHOW DATABASES;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| info               |
| mysql              |
| performance_schema |
| sys                |
| world              |
+--------------------+
mysql> SHOW FULL TABLES FROM info;
+---------------------------------------+------------+
| Tables_in_info                        | Table_type |
+---------------------------------------+------------+
| character_sets                        | VIEW       |
| collation_character_set_applicability | VIEW       |
| collations                            | VIEW       |
| column_privileges                     | VIEW       |
| columns                               | VIEW       |
...