Comment 13 for bug 660307

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Mikkel Kamstrup Erlandsen (kamstrup) wrote : Re: [Zeitgeist] [Bug 660307] Re: zeitgeist fails to run if its database structure is not complete

Oh, and one point in I forgot to add in my previous comment - I don't
want to validate the DB on startup. That's just way too expensive -
and whas in fact one of the primary points when I implemented DB
versioning.

One thing we could do to easily, and almost freely, detect when we are
killed during an upgrade would be to set the core schema version to -1
just before we start the upgrade, and then set it to the correct
version if the upgrade completes correctly. Then if we start up and
see DB schema version -1 we know that we have to recover from backup.