QDBM and transactions

[David Relson]

On Fri, 29 Oct 2004 22:35:49 +0200
Stefan Bellon wrote:

> Matthias Andree wrote:
> > Stefan Bellon schrieb am 2004-10-29:
> 
> > > I just replaced Depot API with Villa API in datastore_qdbm.c but
> > > not including transactions. I noticed that Villa API is _a lot_
> > > faster than Depot API (that's because it uses B+ trees in order to
> > > store the data rather than a hash table). So even if a complete
> > > transactional layer for QDBM is not worthwile, _if_ we keep QDBM
> > > as database backend at all, it might be still nice switching from
> > > Depot to Villa because of the speedup.
> 
> > I don't mind. Does this mean the switch to B+ trees makes the "old"
> > data bases unreadable?
> 
> Yes. Although it is pretty trivial to migrate if you know in advance:
> 
> $ bogoutil.old -d wordlist.db > wordlist
> $ bogoutil.new -l wordlist.db < wordlist
> 
> > If so, we'd better include this for 0.93.0, which is our
> > "incompatible changes galore" release.
> 
> Yes, that's true. I'd just like to receive an answer from Mikio
> concerning one thing with Villa. When did you want to release 0.93.0?

How much time do you need?  I'd like to release it this weekend, but if
the delay isn't great, can delay.

David