On-Demand Recordings from PrestoCon’s, Webinars, Meetups, and more
In this talk we are going to introduce Presto cross environment query federation which will enable query execution across different clouds and on-prem Presto clusters. This helps in reducing the network data transfer which results in lower Egress and Ingress costs when we are querying across clouds.
In this talk, WalmartLabs is sharing how they build Enterprise Distributed Query Service powered by Presto & Alluxio across clouds.
In this talk, I will be talking about a microservice that we have built at Uber to be able to analyze Presto queries. The Presto Query Engine does not provide endpoints for query analysis purposes. One has to either execute the query or gather insights from the query explain plan. In this talk, I will talk about 1. The work that we had to do to do the query analysis in a microservice using Presto as a library. 2. Doing predicate analysis on the queries to come up with data formatting recommendations in order to improve query performance. 3. Using the analysis service for query result cache invalidation. The analysis figures out whether the results from a previous run of the query are still valid and can be reused.