Subject Re: [firebird-support] Getting garbage info from the database
Author Ivan Prenosil
From: "Pavel Cisar"
> While you can get the exact measure of garbage, you can get approximate
> numbers from gstat: use -a and -r gstat switches. IFAIK -r switch is not
> available through services API, so use really the command-line gstat.

I think that it is already available, this is new in FB1.5RC7 ibase.h:

* Parameters for isc_info_svc_db_stats *
#define isc_spb_sts_record_versions 0x20