Delta Lake

DBX definition:

Delta Lake is the optimized storage layer that provides the foundation for tables in a lakehouse on Databricks. Delta Lake is  open source software that extends Parquet data files with a file-based transaction log for  ACID transactions and scalable metadata handling.

Features:

• ACID transaction guarantees
• Scalable data and metadata handling
• Audit history and time travel
• Schema enforcement and schema evolution
• Support for deletes, updates, and merges
• Unified streaming and batch data processing
  Delta lake uses Delta Tables to organize data into tabular format.

• Liquid Clustering