MySQL Shell 8.0 Release Notes
MySQL Router 8.0 User Guide
MySQL Router 8.0 Release Notes
When an operation is executed, in addition to any results returned, some additional information is returned. This includes information such as the number of affected rows, warnings, duration, and so on, when any of these conditions is true:
JSON format is being used for the output
MySQL Shell is running in interactive mode.
When JSON format is used for the output, the metadata is returned as part of the JSON object. In interactive mode, the metadata is printed after the results.