ASA Database Administration Guide
Database Options
Alphabetical list of options
Controls the gathering of statistics during query execution
ON, OFF
ON
The server collects statistics during normal query execution and uses the gathered statistics to self-tune the column histograms. You can set the UPDATE_STATISTICS option OFF to disable the gathering of statistics during query execution.
The UPDATE_STATISTICS option does not affect changes to statistics as a result of updates to data (LOAD/INSERT/UPDATE/DELETE).
Under normal circumstances it should not be necessary to turn this option off.