How to print message to screen or console using mysql trigger?

Question

MySQL

Google didn't resolve my issue.
The After delete trigger should display a message on the screen or in the console stating that records in certain tables have been deleted. What sql statement can implement this? The text of the message is just a handwritten string that has a constant value, you don't need to pull it up from anywhere. It's stupid, motherfucking, a message that I can't display for 2 hours.
Thank you for your attention.

Answer 1

SIGNAL? Well, https://github.com/mysqludf/lib_mysqludf_log