Author: Lu Niu

Software Engineer at Pinterest

Native Parquet Writer for Presto
By Lu Niu & Zhenxiao Luo June 29, 2021September 21, 2023
Overview With the wide deployment of Presto in a growing number of companies, Presto is used not only for queries, but also for data ingestion and ETL jobs. There is a need to improve Presto’s file writer performance, especially for popular columnar file formats, e.g. Parquet, and ORC. In this article, we introduce the brand…
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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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