Core Data, SQLLITE, and slow Array Operators
Core Data, SQLLITE, and slow Array Operators
- Subject: Core Data, SQLLITE, and slow Array Operators
- From: email@hidden
- Date: Thu, 26 Oct 2006 10:41:03 -0700
I have a relatively simple Core Data application that stores data in
SQLLite format. Bindings are also used. Everything works fine
except when I use any array operators on the data after the data have
been read from disk. If I start with an empty data store, and
populate it with about 1,000 records using NSEntityDescription
insertNewObjectForEntityForName, the array operator calculations are
performed almost instantly. If I then quit the app and reopen it so
that the data are read back in, the same array operators on the same
data takes about 45 minutes (yes, minutes) to calculate the same
values. Why could possibly be slowing down the calculations of the
array operators working on the exact same data? Any help would be
appreciated.
Thanks,
Bill
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