Non-transactional writes, such as AddSSTable requests may write at a timestamp arbitrarily far in the past. As such, the incremental iterator used by backup will miss these writes if they write to a timestamp prior to that of the previous backup.

Indexes that are being added to tables should only be backed up when they appear online. Additionally, these spans should be considered newly introduced so that backup performs a full scan of the index, rather than an incremental read.

Offline tables should be included in the backup to account for the case where a table that was previously online was taken offline. The writes to the table while it was OFFLINE will need to be captured in a subsequent incremental backup once the table returns online.