XCOM™ Data Transport® for Windows
There is no document that describes all of the fields in the xcom_history_tbl.
Look at the historyDB.sql file in the %xcom_home%\config directory you will see that most of the fields are relateable to the parameters you specify in the CNF parameters.
For example:
lfile is equivalent to LOCAL_FILE
file is equivalent to REMOTE_FILE
History reports can be generated from the XCOM GUI Get History tab and history records can be filtered.
Export it into an XML file and implement a query using that.
The xcomtcp -c7 command may also be used to retrieve history records.