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The Best Data Warehouse is a Lakehouse

Reynold Xin, Co-founder and Chief Architect at Databricks, presented during Data + AI Summit 2024 on Databricks SQL and its advancements and how to drive performance improvements with the Databricks Data Intelligence Platform. Speakers: Reynold Xin, Co-founder and Chief Architect, Databricks Pearl Ubaru, Technical Product Engineer, Databricks Main Points and Key Takeaways (AI-generated summary) Introduction of Databricks SQL: Databricks SQL was announced four years ago and has become the fastest-growing product in Databricks history. Over 7,000 customers, including Shell, AT&T, and Adobe, use Databricks SQL for data warehousing. Evolution from Data Warehouses to Lakehouses: Traditional data architectures involved separate data warehouses (for business intelligence) and data lakes (for machine learning and AI). The lakehouse concept combines the best aspects of data warehouses and data lakes into a single package, addressing issues of governance, storage formats, and data silos. Technological Foundations: To support the lakehouse, Databricks developed Delta Lake (storage layer) and Unity Catalog (governance layer). Over time, lakehouses have been recognized as the future of data architecture. Core Data Warehousing Capabilities: Databricks SQL has evolved to support essential data warehousing functionalities like full SQL support, materialized views, and role-based access control. Integration with major BI tools like Tableau, Power BI, and Looker is available out-of-the-box, reducing migration costs. Price Performance: Databricks SQL offers significant improvements in price performance, which is crucial given the high costs associated with data warehouses. Databricks SQL scales more efficiently compared to traditional data warehouses, which struggle with larger data sets. Incorporation of AI Systems: Databricks has integrated AI systems at every layer of their engine, improving performance significantly. AI systems automate data clustering, query optimization, and predictive indexing, enhancing efficiency and speed. Benchmarks and Performance Improvements: Databricks SQL has seen dramatic improvements, with some benchmarks showing a 60% increase in speed compared to 2022. Real-world benchmarks indicate that Databricks SQL can handle high concurrency loads with consistent low latency. User Experience Enhancements: Significant efforts have been made to improve the user experience, making Databricks SQL more accessible to analysts and business users, not just data scientists and engineers. New features include visual data lineage, simplified error messages, and AI-driven recommendations for error fixes. AI and SQL Integration: Databricks SQL now supports AI functions and vector searches, allowing users to perform advanced analysis and query optimizations with ease. The platform enables seamless integration with AI models, which can be published and accessed through the Unity Catalog. Conclusion: Databricks SQL has transformed into a comprehensive data warehousing solution that is powerful, cost-effective, and user-friendly. The lakehouse approach is presented as a superior alternative to traditional data warehouses, offering better performance and lower costs.