Delta Lake V4

Delta Lake 4.0 UniForm + Liquid Clustering 2024.

Définition

Delta Lake 4.0 features : UniForm (table accessible simultanément en Delta + Iceberg via metadata layer), Liquid Clustering (alternative à partitioning + Z-Order), Deletion Vectors v2, Variant type pour semi-structured. Compatible Apache Spark 3.5+ et Spark 4.0. Implémentations OSS : delta-rs (Rust), delta-spark (Java/Scala), delta-iceberg (UniForm bridge).

Origine

Databricks 2017, donation Linux Foundation Delta Lake project 2019, Delta Lake 4.0 publié 2024.

Usage

Dominant Databricks ecosystem. UniForm 4.0 réduit lockin permettant lecture par Snowflake / Trino / Iceberg readers.

Termes liés

• Delta Lake — fiche socle.
• Apache Iceberg V3 — concurrent direct.
• Delta UniForm — pont interop.