WARNING.txt

WARNING TRIGGERS
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Installed triggers can be removed with the uninstall.sql file. Be aware that MySQL triggers can have one side effect on database migration:
* ensure your databases dumps contains triggers (or you'll need to rerun the install script on the new database, without the column creation instructions)
* use root@localhost to create triggers (sql install script) OR ENSURE you USE THE SAME USER/HOST mechnism to access the database on  the new DB server: 
  if you did not use root@localhost to create the triggers but foo@localhost, then the triggers are associated with foo@localhost. If on the new server
  foo@localhost is not a known user in MySQL triggers will fail (yes, this is a shame).