Field	Description	Type	Null	Key	Default
id	sequential ID	int(11)	NO	PRI	NULL
hook	name of hook	char(191)	NO	MUL
file	relative filename of hook handler	char(191)	NO
fn	function name of hook handler	char(191)	NO
priority	can be used to sort conflicts in hook handling by calling handlers in priority order	smallint	NO	MUL	0
hook_version	version 0 hooks must have two arguments, the App and the hook data. version 1 hooks have 1 argument - the hook data	int(11)	NO	MUL	0