Jul 23, 2025 · A persistent data structure is a data structure that always preserves the previous version of itself when it is modified. They can be considered as ‘immutable’ as updates are not in-place.

In computing, a persistent data structure or not ephemeral data structure is a data structure that always preserves the previous version of itself when it is modified.

The first lecture covers persistent data structures. First we introduce the pointer machine model, and four levels of persistencies: partial, full, confluent, and functional.

A persistent data structure is a data structure that preserves the previous versions of itself when modified, allowing access to any historical version. In other words, once a change is made to the …

In contrast, persistent data structures retain the complete history of the data: everything happens as if an update recreates a new structure, independent of the previous one; this can be done in a time- and …

Sep 6, 2025 · This article provides a detailed breakdown of persistent data structures: what they are, why they matter, their operations, visual models, and working examples in code.

Aug 24, 2024 · In this post, we've explored the theory and practice of persistent data structures, including their use in various programming languages and the key concepts and mechanisms that …

Jun 13, 2025 · Persistent data structures are a type of data structure that preserves the previous version of itself when it is modified. This is achieved by creating a new version of the data structure each …

Partial persistence lets you make modifications only to the present data structure but allows queries of any previous version. These previous versions might be accessed via a timestamp. Full persistence …

e have two distinct implementations of the data structure. In the first implementation, which we refer to as Fully Persistent, we treat all data fields of the data structure