--- /dev/null
+--
+alter table defaults rename invnumber to sinumber;
+alter table defaults add vinumber text;
+alter table defaults add employeenumber text;
+alter table defaults add partnumber text;
+alter table defaults add customernumber text;
+alter table defaults add vendornumber text;
+--
+alter table employee add employeenumber varchar(32);
+--
+alter table customer add startdate date;
+alter table customer add enddate date;
+--
+alter table vendor add startdate date;
+alter table vendor add enddate date;
+--
+update defaults set version = '2.4.3';