Unfortunately archived file number have to be written to checkpoint. It cannot be calculated using checkpoint LSN as archive may be start by user at any time starting with any LSN. So I introduced two additional 4-byte fields in checkpoint to hold high 4-byte values for archive file number and archive file offset
Unfortunately archived file number have to be written to checkpoint. It cannot be calculated using checkpoint LSN as archive may be start by user at any time starting with any LSN. So I introduced two additional 4-byte fields in checkpoint to hold high 4-byte values for archive file number and archive file offset