Building a Semantic and Metrics Layer Using Calcite

Explore the concept of semantic layers, also known as metrics layers, in this 40-minute conference talk by Julian Hyde, the original developer of Apache Calcite. Learn how semantic layers bridge the gap between business users and databases, enabling query composition using familiar concepts. Discover the evolution of this technology from query languages, multidimensional OLAP, and query federation. Delve into Calcite's new features for defining business views, querying measures, and optimizing performance. Gain insights from Hyde's extensive experience in developing open-source frameworks and analytics engines, including his current work at Google on Looker and BigQuery.