the backup, this is only an approximation and may not end at exactly

<literal>100%</literal>. In particular, when WAL log is included in the

backup, the total amount of data cannot be estimated in advance, and

in this case theprogress reportwillonly count towards the total

amount of data without WAL.

in this case theestimated target sizewillincrease once it passes the

total estimate without WAL.

</para>

<para>

When this is enabled, the backup will start by enumerating the size of