# Understanding and Tuning Presto Query Processing with Martin

DevFeed: [Understanding and Tuning Presto Query Processing with Martin](<https://devfeed.tech/articles/understanding-and-tuning-presto-query-processing-with-martin-8645.md>)

Original publisher: [Read original article](<https://trino.io/blog/2020/07/30/training-query-tuning.html>)

Author: Manfred Moser

Published: 2020-07-30T00:00:00Z

Content type: article

Language: en

Sources: [Trino Blog](<https://devfeed.tech/sources/trino-blog.md>)

Topics: [Query (disambiguation)](<https://devfeed.tech/topics/query.md>), [SQL](<https://devfeed.tech/topics/sql.md>)

Tags: [free](<https://devfeed.tech/tags/free.md>), [london](<https://devfeed.tech/tags/london.md>), [q-a](<https://devfeed.tech/tags/q-a.md>), [sql](<https://devfeed.tech/tags/sql.md>), [time](<https://devfeed.tech/tags/time.md>), [training](<https://devfeed.tech/tags/training.md>), [update](<https://devfeed.tech/tags/update.md>), [webinar](<https://devfeed.tech/tags/webinar.md>)

## AI overview

This article promotes a free webinar and training session on understanding and tuning Presto query processing. It covers query execution, EXPLAIN plans, the cost-based optimizer, optimizer limitations, and techniques for improving query performance.

## Source excerpt

With the help of David's training about advanced SQL you composed a number of useful queries. You gain valuable insights from the resulting data. However these complex queries take time to run. If only you could make them run faster. I think we have just what you need coming up. Join us for a free webinar Understanding and Tuning Presto Query Processing with Martin Traverso. Update: We are delighted that such an advanced topic attracted close to 150 attendees. Everyone learned a lot and many additional questions came up during class and in the Q&A overtime. Take advantage of the slides and recording to recapture, or if you could not attend: Download the slides