CREATE PROCEDURE  tsdropall3();
    define drop_wt integer;
    define drop_vt integer;

    let drop_wt = 0;
    let drop_vt = 0;

select count(*) into drop_wt from systables 
where 
tabname not in ('tscontainerwindowtable') and
tabid in (select tabid from syscolumns 
		where extended_id in (select extended_id from sysxtdtypes
					where type = ( select type from sysxtdtypes
							where name = 'timeseries')
				     )
	        );


select count(*) into drop_vt from systables
where 
tabname not in ('tscontainerusageactivewindowvti','tscontainerusagedormantwindowvti') and
am_id in (select am_id from sysams where am_name = 'ts_vtam');

    if (drop_wt = 0 and drop_vt = 0) then
       drop table TSContainerUsageActiveWindowVTI;
       drop table TSContainerUsageDormantWindowVTI;
       drop table tscontainerwindowtable;
    end if;

END PROCEDURE;

EXECUTE PROCEDURE  tsdropall3();
DROP PROCEDURE  tsdropall3();