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Re: Changes in CoreData/10.4.3?
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Re: Changes in CoreData/10.4.3?


  • Subject: Re: Changes in CoreData/10.4.3?
  • From: Colin Cornaby <email@hidden>
  • Date: Tue, 1 Nov 2005 15:04:31 -0800

My CoreData stuff seems to be working fine in 10.4.3, but I'm just wondering what data migration issues were fixed as CoreData doesn't have any sort of data migration. Has Apple added some sort of data schema migration? CoreData doesn't allow you to move data from one schema to another which is a problem for if you update your schema. At WWDC they made it sound like this was an issue they were looking at addressing.

Or is this something different? Does data migration mean something like moving from an XML store to a SQL store?

-Colin

On Nov 1, 2005, at 9:30 AM, Jesse Grosjean wrote:

Can anyone clarify this?

The Core Data framework has been updated to improve relationship
management issues, resolve issues with data migration, improve Undo
and Redo commands, and improve insertion performance.

Specifically I'm wondering what the update means by resolving data
migration issues.

-Colin

I too would be very interested in learning more about these changes. It appears to fix an undo bug that I talked about in a post to this list with the subject "CoreData 'Could Not Merge Changes'". But since upgrading to 10.4.3 I'm having consistent trouble with crashes after my app quits. I haven't tracked this down yet, but it would be very nice to have some more detailed info about what has changed.


Jesse
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  • Follow-Ups:
    • Re: Changes in CoreData/10.4.3?
      • From: mmalcolm crawford <email@hidden>
References: 
 >Re: Changes in CoreData/10.4.3? (From: Jesse Grosjean <email@hidden>)

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