Blacklist feature instead of whitelist

[rodo]

In first I want to thank you for this amazing tool !

This is a feature request issue, to protect our postgresql clusters against bad queries (like sorting billions of tuples when only some parts are needed) have you plan to add a blacklist feature ?

[snaga]

Thanks for the comment.

Yes, I've been interested in adding that.
However, unfortunately I don't have any good idea how its spec should be designed.
So, I've been looking for it.
If you have any idea, could you please share it?
Any idea would be much appreciated.

Regards,