Function obj_iter_index_range 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn obj_iter_index_range(
    txn: *mut obj_read_txn_t,
    collection: *const c_char,
    index_name: *const c_char,
    lower: *const u8,
    lower_len: usize,
    lower_inclusive: bool,
    upper: *const u8,
    upper_len: usize,
    upper_inclusive: bool,
    out_iter: *mut *mut obj_iter_t,
) -> obj_error_t

Construct an iterator over the index range [lower, upper] (bounds applied per *_inclusive flag) on index_name in collection. NULL lower / upper means unbounded.

Safety

• txn, collection, index_name, out_iter must follow the usual non-null + NUL-terminated conventions.
• lower / upper may be NULL (paired with _len = 0 and treated as unbounded) or point to _len readable bytes.