Author: Ke Wang

Software Engineer at Meta

Avoid Data Silos in Presto in Meta: the journey from Raptor to RaptorX
By Rongrong Zhong, James Sun & Ke Wang January 28, 2022September 21, 2023
Raptor is a Presto connector (presto-raptor) that is used to power some critical interactive query workloads in Meta (previously Facebook). Though referred to in the ICDE 2019 paper Presto: SQL on Everything, it remains somewhat mysterious to many Presto users because there is no available documentation for this feature. This article will shed some light…
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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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