Is the use of SUBQUERY() documented anywhere? The only mention I've seen of it is in the reserved keywords section of the Predicate Format String Syntax guide.
Dave On Apr 2, 2010, at 3:42 PM, Ben Trumbull wrote: > NSComparisonPredicate* exprPred = (NSComparisonPredicate*)[NSPredicate > predicateWithFormat:@"SUBQUERY(self, $key, %...@.$key != nil) == 0", obj]; > NSExpression* expr = [exprPred leftExpression]; > NSLog(@"expression subquery results = %@", [expr > expressionValueWithObject:keys context:nil]);
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