修改数据库名称

teledb=# alter database teledb_db rename to teledb_db_new;
ALTER DATABASE

修改连接数

teledb=# alter database teledb_db_new connection limit 50;
ALTER DATABASE

修改数据库所有者

teledb=# alter database teledb_db_new owner to teledb;
ALTER DATABASE

设置search_path为默认数据

teledb=# alter database teledb_db_new set search_path to public, pg_catalog;
ALTER DATABASE

alter database不支持修改的项目