[Moderator] Keep it technical (Re: CoreData - separate images // was large amount)
[Moderator] Keep it technical (Re: CoreData - separate images // was large amount)
- Subject: [Moderator] Keep it technical (Re: CoreData - separate images // was large amount)
- From: mmalcolm crawford <email@hidden>
- Date: Sun, 4 Dec 2005 10:53:15 -0800
On Dec 4, 2005, at 10:07 AM, Ruslan Zasukhin wrote:
Also I point that with Valentina there is no need to do such hacking.
Valentina perfectly eat your BLOBs in the same table.
So Valentina do resolve that problem.
The first answer you gave was misleading, based on a lack of
understanding of Core Data functionality:
On Dec 3, 2005, at 12:31 PM, Ruslan Zasukhin wrote:
SqlLite stores BLOBs as part of record. When you goto some record,
it load
record into RAM.
Valentina in contrast do more smart things. It NOT load BLOB data
when you
goto record. So never mind how many and how big BLOB data you have
in table,
this NOT affect speed of iteration.
Even more cool. Valentina have such structure of tables, that any
column
operation as INDEXING, LIKE, search ... DO NOT depend on the size
and the
number of other fields in table.
So if you'd use Valentina you just did not see this problem with
BLOBs.
With SqlLite workaround can be extracting of image data into
separate Table.
If Valentina were used as the data source in Core Data, it would be
subject to the same constraint -- Core Data does not do attribute-
level faulting, which is why this:
In next letter I did explain TECHNICAL issues why this trick help with
SqlLite.
Also I point that with Valentina there is no need to do such hacking.
Valentina perfectly eat your BLOBs in the same table.
So Valentina do resolve that problem.
is again wrong WRT Core Data, as Chris has already made clear (so
it's not clear why you repeat this here). The appropriate workaround
using Core Data is to put the BLOBs into a separate table (again as
has already been stated).
As others have suggested, your answers have contained too much
marketing and not enough *relevant* technical material. **This is
not acceptable.** As Bill mentioned in an earlier thread, if you
want to lobby Apple to extend functionality, the way to do this is
either through Developer Relations or through submitting enhancement
requests at <
http://bugreport.apple.com/>.
To summarise: Please do not use the list for overt marketing.
mmalc
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