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Creating a trigger on information_schema.processlist


A long standing annoyance has been that stored procedures are opaque
when it comes to profiling them with more granularity than just the
entire procedure.

SHOW FULL PROCESSLIST shows the individual queries while they are
running, but polling SHOW FULL PROCESSLIST or SELECT * FROM
information_schema.PROCESSLIST is not a practical solution because you
can only poll it so many times per second without crippling the

So I had the idea to hook triggers to information_schema.PROCESSLIST
to capture the changes to the INFO column and shunt them into

But MariaDB informs them that root isn't privileged enough to crate a
trigger in information_schema.

Is there another way to augment slow logging granularity of queries
that execute as part of the stored procedure?

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