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Delta Lake articles

Delta Lake comparison, migration, and interoperability — UniForm, conversion tools, and coexistence with Apache Iceberg.

AllDelta LakeApache IcebergLakeOpsLakehouseData PlatformsData LakeCompactionObservabilityCloud CostStreaming

4 articles

Delta Lake to Apache Iceberg zero-copy migration — metadata conversion without moving data
Apache IcebergDelta LakeLakeOpsLakehouse

Delta Lake to Apache Iceberg: Zero-Copy Migration Without Moving Data

How to migrate Delta Lake tables to Apache Iceberg without copying or rewriting data files. Covers zero-copy metadata conversion, the mapping between Delta transaction logs and Iceberg manifest trees, Iceberg V3 spec compatibility, practical tooling (XTable, UniForm, Iceberg Delta module), and the post-migration operational discipline — compaction, sort optimization, statistics — that determines whether converted tables actually perform.

David W
David W
29 min read
Apache Iceberg Migration Strategy — from Hive, Parquet, or Delta to production Iceberg
Data PlatformsApache IcebergDelta LakeLakeOps

Apache Iceberg Migration Strategy: From Hive, Parquet, or Delta to Production Iceberg

A comprehensive migration guide covering three source patterns — Hive/HMS tables, raw Parquet on S3, and Delta Lake — with three migration approaches (in-place, CTAS, shadow), post-migration operations, validation checklists, and common pitfalls. Includes production SQL, config examples, and the operational discipline teams underestimate after conversion.

Jonathan Saring
Jonathan Saring
33 min read
Databricks to Iceberg smooth migration — Databricks and Apache Iceberg connected by a data bridge, with table data flowing into an open Iceberg lakehouse
DatabricksApache IcebergLakeOpsDelta Lake

Databricks to Iceberg Smooth Migration

Databricks to Iceberg smooth migration opens a multi-engine lakehouse — not a platform exit. Databricks stays central for ML and Spark; Iceberg adds Trino, Snowflake, and open catalogs. Five tools: LakeOps, UC managed Iceberg, Delta UniForm, Spark, and Lakehouse Federation.

David W
David W
18 min read
Delta Lake vs Apache Iceberg: Choosing the Right Table FormatExternal
Delta LakeApache IcebergData LakeLakehouse

Delta Lake vs Apache Iceberg: Choosing the Right Table Format

A detailed comparison between Delta Lake and Apache Iceberg, exploring their architectures, performance characteristics, and ideal use cases to help you make the right choice.

Amit Gilad
10 min read