Demystifying Big Data: The Power of Delta Tables (Part 2)
1.Introduction Building on the core concepts in Part 1, we'll now explore advanced functionalities like partition pruning and schema evolution. Beginners will gain a solid grasp, while experts will find in-depth explanations and code examples to push Delta Tables' limits. Get ready to unlock the Delta Log's magic, master time travel, optimize performance, and more! We'll delve into features like CDC and schema evolution for flexible data management. 2. Delta Log: The Heart of Delta Tables At the core of Delta Tables lies the Delta Log, a powerful transactional log that meticulously records every data operation – inserts, updates, and deletes – performed on your table. This comprehensive log serves as the backbone for several key functionalities. Firstly, it ensures ACID transactions, guaranteeing data consistency by ensuring all operations are completed successfully or not at all. Secondly, the Delta Log empowers you with time travel capabilitie...