--- In firebird-support@yahoogroups.com, "Alexander V.Nevsky"

> Choice time interval when you can stop work of your clients and
> perorm sweep in this time. I make in nightly using cron (AT on Win),
> on well-designed database and access this should consume much time.

Sorry, read "should not consume much time". For my 8Gb database and
daily gap several thousands transactions it is 10-15 minutes.

Best regards,
Alexander.