Using Sparse Maps in Teradata 16.10 for Efficient Distribution of Small Tables Across AMPs
Teradata 16.10 introduces Sparse Maps, a feature to place small table rows on one AMP. Learn more about how it can optimize your system here.
sparse maps
Maximizing Performance with Teradata Sparse Maps: An Introduction
Introduction to Teradata Sparse Maps The Teradata hashing architecture and how AMPs are used to split tables for maximum parallelism evenly have been unchanged since the beginning. What is new is the ability to create your hash maps. Hash maps, as we usually know them, are also called contiguous maps. If you are not familiar …