The newest extension I like is the possibility to write to the MySQL error log through the application. Oracle can do that since long. Now we can do this as well...
A list of what I have done up to now you can find here:
- Query and change InnoDB spin_wait_delay: udf_spin_wait_delay-5.1.30-linux-i686-glibc23.so (md5 807c6bc09b5dc88a8005788519f2483a)
- Send message to the MySQL error log: udf_log_error-5.1.30-linux-i686-glibc23.so (md5 dc8ef3e91cf6dec84ab3ad95626ec9b5)
If you have some more suggestions, please let me know.
The complete details you can find here.