public void format(FmtExpr fmt, IndentedWriter writer) {
boolean explicitDirection = false;
boolean needParens = false;
if (direction != Query.ORDER_DEFAULT) {
// Need parens if the expression isn't going to add them anyway.
if (expression.isVariable() || expression instanceof E_Function)
// Bracketless by expression formatting
needParens = true;
}
if (direction == Query.ORDER_ASCENDING) writer.print("ASC");
if (direction == Query.ORDER_DESCENDING) writer.print("DESC");
if (needParens) writer.print("(");
fmt.format(expression);
if (needParens) writer.print(")");
}