Portable UDFs : Write Once, Run Anywhere

While most query engines come with a rich set of functions, it does not cover all the needs of users.

In such cases, user defined functions (UDFs) allow users to express their business logic and use it in their queries. It is common for users to use more than one compute engine for solving their data problems.

Here’s a look at how Facebook’s engineering team works with Portable UDFs.

In this talk, we’ll take a deep dive in the Portable UDF. Portable UDF is our way of allowing users to write a function once in an engine agnostic way and use it across several compute engines. We’ll present the motivation, design and current state of Portable UDF project.


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