[ZODB-Dev] ZODB queries (was ZODB and ORBit-Python problems)
John D. Heintz
jheintz@isogen.com
Wed, 23 May 2001 14:22:55 -0500
What criteria would the ZODB use to determine whether Person instance X
was auto-indexed in the EmployeeIndex and Person instance Y was auto-
indexed in the CustomerIndex? Or would there only be one index (per field)
per Class in the ZODB that was shared across all uses?
I think these are the interesting questions about ZODB indexes.
John
On Tue, May 22, 2001 at 03:46:29PM -0300, Christian Robottom Reis wrote:
> On Tue, 22 May 2001, John D. Heintz wrote:
>
> > Your point below about indexes replicating db data is pretty much the same
> > thing that RDBMS indexes do, and you generally have one index for each
> > commonly search field or group of fields.
>
> Yes, but the SELECT/INSERT/UPDATE interface lets the index maintenence be
> done behind the scenes. In this sense, I think, Catalog exists --
> otherwise you'll have to keep things up-to-date yourself. So I see
> StandaloneZODB as really lacking until we have some (even _very_ basic)
> indexing features. Leaving this to the app programmer is no fun!
>
> Take care,
> --
> /\/\ Christian Reis, Senior Engineer, Async Open Source, Brazil
> ~\/~ http://async.com.br/~kiko/ | [+55 16] 274 4311
>
>
>
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