private void createPropertyTable(String tableName, Schema s) throws IOException {
		if (propertyTable == null) {
			schema = s;
			propertyTable = dbHandle.createTable(tableName, schema);
		}
	}
Attempt to upgrade the map table records to the current schema.
If unable to upgrade any of the map records, the table is removed.
@param tokenInstance token saveable instance
@param monitor task monitor
@return true if all records were successfully upgrade.  A false
value indicates that one or more entries were dropped.
@throws CancelledException if task is cancelled
@throws IOException if IO error occurs
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/properties/ObjectPropertyMapDB.java