platform.alterTables(model, _doDrops, true, true);
platform.alterTables(model, params, _doDrops, true, true);
    public void execute(Task task, Database model) throws BuildException    {        if (getDataSource() == null)        {            throw new BuildException("No database specified.");        }        Platform platform = getPlatform();        try        {            if (isAlterDatabase())            {                platform.alterTables(model, _doDrops, true, true);            }            else            {                platform.createTables(model, _doDrops, true);            }            task.log("Written schema to database", Project.MSG_INFO);        }        catch (Exception ex)        {            if (isFailOnError())            {                throw new BuildException(ex);            }            else            {                task.log(ex.getLocalizedMessage(), Project.MSG_ERR);            }        }    }