MySQL 8.4 Reference Manual Including MySQL NDB Cluster 8.4
      As part of this quick-start guide, an example schema is provided
      which is referred to as the world_x schema.
      Many of the examples demonstrate Document Store functionality
      using this schema. Start your MySQL server so that you can load
      the world_x schema, then follow these steps:
    
Download world_x-db.zip.
          Extract the installation archive to a temporary location such
          as /tmp/. Unpacking the archive results
          in a single file named world_x.sql.
        
          Import the world_x.sql file to your
          server. You can either:
        
Start MySQL Shell in SQL mode and import the file by issuing:
mysqlsh -u root --sql --file /tmp/world_x-db/world_x.sqlEnter password:****
Set MySQL Shell to SQL mode while it is running and source the schema file by issuing:
\sqlSwitching to SQL mode... Commands end with ;\source /tmp/world_x-db/world_x.sql
          Replace /tmp/ with the path to the
          world_x.sql file on your system. Enter
          your password if prompted. A non-root account can be used as
          long as the account has privileges to create new schemas.
        
        The world_x example schema contains the
        following JSON collection and relational tables:
      
Collection
                countryinfo: Information about
                countries in the world.
              
Tables
                country: Minimal information about
                countries of the world.
              
                city: Information about some of the
                cities in those countries.
              
                countrylanguage: Languages spoken in
                each country.
              
MySQL Shell Sessions explains session types.