The management of tables is divided into four tasks:
defining, displaying, modifying and interactive editing of tables.
The commands that define or modify a table will update its descriptor HISTORY.
As the length of this descriptor is limited, if you are doing a lot of
operations on the same table, you may get a descriptor overflow. In that
case you can turn off the automatic addition of history_lines by adding an
integer descriptor named HISTORY_UPDA to the table and setting it to 0.