[Freeswitch-users] How to multiple delete extensions in Freeswitch?

I'm playing with freeswitch towards replacing asterisk/trixbox. I've managed to create 1000 new extensions by accident. I want to delete all these extensions, but there are so many that it's taking FusionPBX quite a long time to do anything. Is there any way to do a mass deletion of extensions in freeswitch or fusionpbx or using mysql? Since I just starting I don't care if I delete everything. Frank