[Gnu-arch-users] [BUG] revisioning BDB databases

[Tom Lord]

A previous [BUG] post describes how to add xdelta support to arch
without breaking everything --- the idea of ".exact.tar.gz"
alternative changesets.

An analogous idea for deltas to a BDB persistent hash table is to
archive the appends to a BDB _log_file_, but to, when applying a
.exact changeset, recreate the associated database (also archived)
by replaying the log rather than using xdelta.

Another previous [BUG] post (a "FEATURE REQUEST") described how to
implement two-stage commit.

The above technique for archiving BDB logs plus the plans for
two-stage commit plus the plans for a "global-scale distributed
filesystem" add up, in a fairly simple way, to a storage manager for a
global-scale relational database.


Didn't someone once say "the network is the computer"?
-t