Hmm, nevermind, I see the issue in the issue tracker related to an
"Index Management API".  I guess I'm not the only one. Starring it.

On Jan 8, 1:46 pm, RyanD <[email protected]> wrote:
> One followup question to the case described above:
>
> If I want entity types that are application controlled, and
> dynamically created through the low level API (as described above),
> then there is no way to create indexes unless there is also some kind
> of low level API for index creation.  As it stands the index files
> appear to be a static part of the uploaded application files, which
> wouldn't work with dynamically create entity types.  Am I
> understanding this index "limitation" correctly?  If so, are there any
> long term plans for a low level index API?
>
> Ryan
>
> On Nov 19 2009, 11:53 am, "Ikai L (Google)" <[email protected]> wrote:
>
>
>
> > Ryan,
>
> > The answer to both of your questions is "no" with a gotcha. Unlike an RDBMS
> > in which tables can enforce some degree of the concept of "Type", BigTable
> > has no concept of type or tables. Entities are mapped by an Entity index,
> > which in turn is also stored in BigTable. Searchable/filterable fields on an
> > entity also generate indexes, and composite indexes are also generated
> > depending on what queries are being done. There is no limit to the amount of
> > entities you can store, but you will only be able to retrieve 1000 with any
> > given query until we release cursor support in an upcoming release.
>
> > We'll be publishing an article that describes how the data store works
> > underneath the hood soon. I'll post it when it goes live.
>
> > On Sat, Nov 14, 2009 at 5:55 PM, RyanD <[email protected]> wrote:
> > > A couple of quota questions:
>
> > > 1)  Mainly:  I'm looking to develop an application that has an
> > > *unbounded* number of entity types / kinds (by using the low level
> > > Java API). Is this possible, or is there some limit to the number of
> > > entity types / kinds that an application may have?
>
> > > 2)  Any limit on the number of entries for a single entity type /
> > > kind?
>
> > > Thanks,
>
> > > Ryan
>
> > > --
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>
> > --
> > Ikai Lan
> > Developer Programs Engineer, Google App Engine
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