cm_created - HISTORY_RECORDS.creation_time TIMESTAMP NOT NULL
noderef - HISTORY_RECORDS.history_event_id CHARACTER VARYING(255) NOT NULL
cm_creator- HISTORY_RECORDS.user_id CHARACTER VARYING(255) NOT NULL
event_date - HISTORY_RECORDS.creation_time TIMESTAMP NOT NULL
event_name - HISTORY_RECORDS.event_type CHARACTER VARYING(255) NOT NULL

event_tasktype - HISTORY_RECORDS.task_type CHARACTER VARYING(255)
event_taskrole - HISTORY_RECORDS.task_role CHARACTER VARYING(255)
event_document_added - HISTORY_RECORDS.document_id CHARACTER VARYING(255) NOT NULL

event_initiator_added - HISTORY_RECORDS.initiator CHARACTER VARYING(255)
event_workflowinstanceid - HISTORY_RECORDS.workflow_instance_id CHARACTER VARYING(255)
event_workflowdescription - HISTORY_RECORDS.workflow_description CHARACTER VARYING(2000)