Author: Saksham Sachdev

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RaptorX: Building a 10X Faster Presto
By James Sun, Ke Wang, Rohit Jain, Saksham Sachdev, Shixuan Fan, Bin Fan, Zhenxiao Luo & Lu Niu February 4, 2021September 21, 2023
RaptorX is an internal project name aiming to boost query latency significantly beyond what vanilla Presto is capable of. This blog post introduces the hierarchical cache work, which is the key building block for RaptorX. With the support of the cache, we are able to boost query performance by 10X. This new architecture can beat…
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Improving the Presto planner for better push down and data federation
By Yi He, James Sun, Maria Basmanova, Rongrong Zhong, Jiexi Lin, Saksham Sachdev & Akshay Pall December 23, 2019September 21, 2023
Presto defines a connector API that allows Presto to query any data source that has a connector implementation. The existing connector API provides basic predicate pushdown functionality allowing connectors to perform filtering at the underlying data source. However, there are certain limitations with the existing predicate pushdown functionality that limits what connectors can do. The…
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