test

                << ");";

            Args->database[0]->exec(sql,res);

            // Migration: add position column if missing

            // Migration: add position column if missing. Plain ADD COLUMN (no

            // "IF NOT EXISTS") is portable to MySQL server versions that don't

            // support that conditional syntax at all — those would otherwise

            // throw an ALTER TABLE syntax error, silently swallowed below,

            // leaving the column permanently missing.

            sql.clear(); res.clear();

            sql << "ALTER TABLE navbar_items ADD COLUMN IF NOT EXISTS position integer default 0;";

            sql << "ALTER TABLE navbar_items ADD COLUMN position integer default 0;";

            try { Args->database[0]->exec(sql,res); } catch(...) {}

            return;