# HistoryDescriptor A type that describes the criteria, and, optionally, sort order, to use when fetching history data ``` struct HistoryDescriptor where TransactionType : HistoryTransaction ``` ## Topics ### Creating a descriptor [`init(predicate:)`](/documentation/SwiftData/HistoryDescriptor/init(predicate:)) Initializes a new history descriptor with the provided predicate. [`init(predicate:sortBy:)`](/documentation/SwiftData/HistoryDescriptor/init(predicate:sortBy:)) Initializes a new history descriptor with the provided predicate and sort descriptor. ### Getting the descriptor configuration [`fetchLimit`](/documentation/SwiftData/HistoryDescriptor/fetchLimit) The maximum number of transactions to retrieve from the model store’s history. [`predicate`](/documentation/SwiftData/HistoryDescriptor/predicate) The predicate used to initialize the history descriptor. [`sortBy`](/documentation/SwiftData/HistoryDescriptor/sortBy) The sort descriptor to use to sort the returned history data. --- 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)