Photon Technical Deep Dive: How to Think Vectorized

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Photon is a new vectorized execution engine powering Databricks written from scratch in C++. In this deep dive, I will introduce you to the basic building blocks of a vectorized engine by walking you through the evaluation of an example query with code snippets. You will learn about expression evaluation, compute kernels, runtime adaptivity, filter evaluation, and vectorized operations against hash tables.

Speaker: Alex Behm


 
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Alex Behm
About Alex Behm

Databricks

Alex has been building databases for over a decade in academia and industry, and maintains a passion for speed and quality. He is the tech lead for Photon, a new vectorized engine written from scratch in C++, that powers Databricks' Delta Engine. Alex holds a PhD in databases from UC Irvine.