mysql top slowest queries by permormance schema

SELECT 

    schema_name, 

    digest_text AS query, 

    COUNT_STAR AS executions, 

    SUM_TIMER_WAIT / 1000000000000 AS total_seconds,

    AVG_TIMER_WAIT / 1000000000000 AS average_seconds,

    MAX_TIMER_WAIT / 1000000000000 AS max_seconds

FROM 

    performance_schema.events_statements_summary_by_digest

WHERE 

    schema_name IS NOT NULL

ORDER BY 

    total_seconds DESC

LIMIT 10;