Re: Need of an Apple Engineer. Core-Data Issues
Re: Need of an Apple Engineer. Core-Data Issues
- Subject: Re: Need of an Apple Engineer. Core-Data Issues
- From: malcom <email@hidden>
- Date: Wed, 29 Mar 2006 19:42:35 +0200
Mmalc sorry but my email does not contains imperatives verbs (I'm not
english so probability I've made some mistake during write it,and in
this case sorry for it). I would to know more about some performance
issues because I've found other mails like on archives and the only
real solution seems to be Valentina DB (and in fact this is not a
reply to the question).
Ok this is the related doc (the only releated I've found):
<file:///Developer/ADC Reference Library/documentation/Cocoa/Conceptual/CoreData/index.html#//apple_ref/doc/uid/TP40001075>
"You can set a limit to the number of objects a fetch will return
using the method setFetchLimit: as shown in the following example."
Ok I've tried it but nothing. if you set it it takes about 3 secs
(10,000 records). If you don't set it it takes always 3 secs.
I'm not sure about this but I've understood that if you change
secondary attributes in releationship you can reduce memory overhead
(because releationship are not loaded until called) and it will be
more faster. Is this wrong? If yes can you say (please) to me what's
the right way?
Thank you again
On 3/29/06, mmalcolm crawford <email@hidden> wrote:
> Private, off-list.
>
> On Mar 29, 2006, at 12:53 AM, malcom wrote:
>
> > I would to talk about Core-Data performance issues but there is not
> > any reply from Apple. I have this modeled structure (in fact you could
> > make a typical tutorial):
>
> Do *not* post messages like this to the list in future.
>
>
>
> To emphasise and add to Scott's reply:
>
> You have not right to an answer on the list from *anyone*.
> Your questions are already answered in the documentation.
> Your model shows you clearly have not followed other advice in the
> documentation.
>
> I strongly suggest you read <http://www.catb.org/~esr/faqs/smart-
> questions.html>.
>
> mmalc
>
>
--
www.malcom-mac.com
mac/win software development
email@hidden
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