Help embedding UncheckedBind into a query

[csharad]

Here is the query I would like to achieve. MATCH sql works if the parameter is hardcoded but I am not able to work out a solution with bind.

    let mut query = jobs::table.into_boxed();
    if let Some(q) = search.query() {
        query = query
            .filter(sql::<Bool>("MATCH (title, description, qualification) AGAINST (?)")
            .bind::<Text, _>(q));
    }
    if let Some(salary_range) = search.salary_range() {
        query = query.filter(jobs::salary
                .ge(salary_range.lower())
                .and(jobs::salary
                    .le(salary_range.upper())));
    }

And does multiple filters result in and condition? How should I approach this problem?