Yes. From 
http://code.google.com/appengine/kb/postpreviewpricing.html#operations_charged_for:

If I do db.get([key1, key2]), and two entities were fetched, how many
'operations' have I consumed?
2 entity fetches.

If key2 didn't exist and only one entity was fetched, what would be the cost?
2 entity fetches.

If db.get(key1) fetches a 5kb entity and db.get(key2) fetches a 500kb
entity, what's the difference in cost?

No difference.

On Thu, Sep 8, 2011 at 2:45 PM, Eurig Jones <[email protected]> wrote:
> Hi,
>
> I'm just trying to clarify here. Will a SELECT query on 10 rows be
> exactly twice as expensive in terms of "datastore operations" as the
> same SELECT query if it returned 5 rows?
>
> Thanks!
>
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