The Azure Synapse Analytics team has prominent engineers enhancing and contributing back to the Apache Spark project. One of our focus areas is Spark query optimization techniques, where Microsoft has decades of experience and is making significant contributions to the Apache Spark open source engine.
The attachment at the bottom of this blog post will be presented at the 48th International Conference on Very Large Databases (#VLDB2022) and covers the latest developments in query optimization for Apache Spark 3. Those optimizations were developed by Microsoft engineers and are available today in the Azure Synapse runtime for Apache Spark versions 3.1 and 3.2.
Check out the high-level updates as well as a complete technical paper laying out the changes.