thanks
On Nov 6, 6:25 pm, dobee <[EMAIL PROTECTED]> wrote:
> On Nov 6, 10:37 am, mawei1981 <[EMAIL PROTECTED]> wrote:
>
> > Hi, All
>
> > As we know, the database provide a unique key not a primary key to
> > support we store some content we do not like redundant, we query some
> > content use distinct because we do not want to see redundant record.
>
> > So, when I store some url or email address in my spider(written under
> > app engine), I need to create a entity to store the content, and I
> > guess I don't need to execute a GQL to check it has exist.
>
> up till now you have to
>
> seehttp://code.google.com/p/googleappengine/issues/detail?id=178
>
>
>
> > Someone can tell me, Does app engine has this Property of db.Model?
>
> > Maven
> > 2008-11-06
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