Function pgx_pg_sys::index_compute_xid_horizon_for_tuples

pub unsafe fn index_compute_xid_horizon_for_tuples(
    arg_irel: Relation,
    arg_hrel: Relation,
    arg_ibuf: Buffer,
    arg_itemnos: *mut OffsetNumber,
    arg_nitems: c_int
) -> TransactionId