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.
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Databricks provides a unified data analytics platform, powered by Apache Spark™, that accelerates innovation by unifying data science, engineering and business.
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