Impact on the user:
- Users unable to monitor MariaDB
Steps to reproduce:
- connect MariaDB with enabled performance-schema to pmm-server
- exec any query
- find the query in QAN
- check tabs "Example" and "Explain"
- Query example and some explain data
- No example and no Explain/table data
Run following command to start collecting data into performance_schema.events_statements_history
To collect real examples user should execute following queries in DB.