Delta Lake
Delta Lake is a storage layer on top of existing data lake. It is compatible with Apache Spark. It helps tackling data reliability issues and manage data lifecycle. Underlying storage format is Parquet, a columnar open-source format. Delta Lake enables ACID transactions, scalable metadata handling, data versioning, schema enforcement and schema evolution. It also supports updates and deletes. It is available in open-source version or managed version on Databricks.
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