Description
Data validation is becoming more important as companies have increasingly interconnected data pipelines. Validation serves as a safeguard to prevent existing pipelines from failing without notice. Currently, the most widely adopted data validation framework is Great Expectations. They have support for both Pandas and Spark workflows (with the same API). Great Expectations is a robust data validation library with a lot of features. For example, Great Expectations always keeps track of how many records are failing a validation, and stores examples for failing records. They also profile data after validations and output data documentation. These features can be very useful, but if a user does not need them, they are expensive to generate. What are the options if we need a more lightweight framework? Pandas has some data validation frameworks that are designed to be lightweight. Pandera is one example. Is it possible to use a lightweight Pandas-based framework on Spark? In this talk, we’ll show how this is possible with a library called Fugue. Fugue is an open-source framework that lets users port native Python code or Pandas code to Spark. We will show an interactive demo of how to e…
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