Scaling Presto for Data Analytics – Insights from Meta, Uber, and Intuit

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At PrestoCon Day 2023, we had a fantastic panel discussion with speakers from Meta, Uber, and Intuit. Each shared their experiences and use cases of scaling Presto in their respective companies. Let’s take a look at the key points discussed by each panelist, including use cases, key metrics, and future plans for Presto. Sign up…

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…