序四（原版）

Trino continues to expand in terms of available connectors, SQL support, and other features and integrations.With over a decade as a successful open source project, Trino has grown well beyond the original use cases of high-performance analytics on Hadoop/Hive-powered data lakes.More than two dozen connectors for relational database systems like PostgreSQL, modern object storage table formats like Iceberg, Delta Lake and Hudi, and various other systems are available.Trino is now a common central query engine in data platforms used across industries and the globe.

With all that in mind, we are very glad that Yiteng and Gary used their technical knowhow of Trino, as well as their knowledge of the great Trino community in China, to produce this book.The impressive scope of the book ensures that a wide range of users can benefit from their knowledge.

The book provides a technical deep-dive to Trino.It starts with an overview and introduces you to the query processing of Trino.You learn all the details of processing a simple SELECT query, and explore the complexities of queries that use joins, aggregations, limits and other advanced features.An introduction of the exchange system within the cluster, that allows the performant, parallel processing of queries follows.Next you learn about the plugin architecture of Trino, how it used for connectors for different data sources, and even how to write your own connector.Finally you learn how to use plugins to implement your own custom functions, that users of your clusters can use in their own SQL queries.

We are delighted that the book is now a reality.The Trino community is spread around the globe, and China is a vibrant part of our community.We are confident that the passionate, dedicated users and contributors, and multiple large corporations enjoying Trino ensure success of the local community and their involvement with partners across the globe.

Together with our mascot Commander Bun Bun, we hope this book enables your success with Trino.We look forward to hear about it in your own blog posts, messages on slack, including the dedicated general-cn channel, a Trino event in China, and maybe even your presentation at the the next Trino Community.

Broadcast or Trino Summit.

Trino founders Martin Traverso, DainSundstrom, and David Phillips and Trino maintainer Manfred Moser