Function sql_support::conn_ext::query_rows_and_then_named

fn query_rows_and_then_named<Coll, T, E, F>(
    conn: &Connection, 
    sql: &str, 
    params: &[(&str, &dyn ToSql)], 
    mapper: F, 
    cache: bool
) -> Result<Coll, E> where
    E: From<Error>,
    F: FnMut(&Row<'_>) -> Result<T, E>,
    Coll: FromIterator<T>,