Database code

Luke Kenneth Casson Leighton lkcl at
Wed Dec 29 18:30:52 GMT 1999

On Wed, 29 Dec 1999, Andrew Tridgell wrote:

> > can your database code provide the following functionality:
> > 
> > - two unique, primary keys
> > 
> > - atomic addition of entries
> yes and yes

> to do the former you need to do this for a store:
> - lock database (tdb_writelock())
> - tdb_store() the record for the secondary key mapping it to the primary key
> - tdb_store() the main record
> - unlock database (tdb_writeunlock())



ok, what i should have explicitly stated is:

- is it possible to have two (or more) unique primary keys

- is it possible to do fast lookups on all those keys
> I don't want to build in multi-key directly to tdb as I want tdb to
> stay really simple, instead use the above simple wrapper to do
> multi-key.

can that be abstracted to another level?

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