CloudKit compound query (query with OR)

Question

I would like to query CloudKit using OR with two fields. But I can\'t find a way how to do this. What I did is:

NSPredicate *predicate1 = [NSPredicate predic         


        

Answer 1

CKQuery supports AND and NOT, so you would imagine you could use simple boolean algebra to create a query based on the fact that NOT(NOT A AND NOT B) == A OR B. HOWEVER, the documentation specifically says:

"The NOT compound operator is not supported in the following cases:

You cannot use it to negate an AND compound predicate."

So you must query for each of the ORed predicates separately save them each as a SET and then take the intersection of the two sets to get the final result