Harnessing Presto – A Deep Dive into Adobe Advertising’s Three Use Cases

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At PrestoCon Day 2023, we had a team from Adobe showcasing three different Presto-based use cases. As part of Adobe Advertising, Rajmani Arya, Varun Senthilnathan and Manoj Kumar Dhakad detailed the Adobe Data Processing platform (ADP) and three use cases for Presto: scheduled pipelines, ad-hoc query, and custom reporting. Let’s dive into what they covered….

Even Faster Unnest

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Unnest is a common operation in Facebook’s daily Presto workload. It converts an ARRAY, MAP, or ROW into a flat relation. Its original implementation used deep copy all the time and was very inefficient. In Unnest Operator Performance Enhancement with Dictionary Blocks, the author improved the Unnest operator by up to 10x in CPU and…