# predicate The logical condition that determines whether the fetch includes a specific model in its results. ``` var predicate: Predicate? ``` ## Discussion Use this property to replace or remove the fetch descriptor’s predicate. If the value is `nil`, any fetch using the descriptor will return all models of the associated type. The default value is the predicate you specify when calling [`init(predicate:sortBy:)`](/documentation/SwiftData/FetchDescriptor/init(predicate:sortBy:)). --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)