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CoreData and Distinct
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CoreData and Distinct
Subject
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CoreData and Distinct
From: Marc Monguio <
email@hidden
>
Date: Tue, 15 Nov 2005 17:31:27 -0800
I have 1000 records in my cocoa sqlite DB. Is there any way to do build an NSPredicate to retrieve an array of nsmanagedobject with a distinct attribute values from a persistent store?
When trying to do it through bindings using the "email@hiddenName" it was very slow (spinning wheel appears) but querying directly the SQLite3 I get results very fast. Maybe is that bindings don't take advantage of the 'distinct' in SQLite ?
$ sqlite3 Library.sql "select distinct ZFIRSTNAME from ZPERSON ORDER BY ZARTISTNAME"
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