orderByRaw method
Emits expression into ORDER BY verbatim.
orderBy only accepts plain identifiers and ASC/DESC; use this when
you deliberately need a SQL expression such as
orderByRaw('FIELD(status, 1, 2, 3)'). Never pass user input here.
Implementation
@override
QueryBuilder orderByRaw(String expression) {
_orderBy.add(expression);
return this;
}