Table workerqueue

Background tasks queue entries

Field	Description	Type	Null	Key	Default	Extra
id	Auto incremented worker task id	int unsigned	YES	PRI		auto_increment
command	Task command	varchar(100)	NO
parameter	Task parameter	mediumtext	NO
priority	Task priority	tinyint unsigned	YES		0
created	Creation date	datetime	YES		0001-01-01 00:00:00
pid	Process id of the worker	int unsigned	YES		0
executed	Execution date	datetime	YES		0001-01-01 00:00:00
next_try	Next retrial date	datetime	YES		0001-01-01 00:00:00
retrial	Retrial counter	tinyint	YES		0
done	Marked 1 when the task was done - will be deleted later	boolean	YES		0