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#604 - Billion Row Challenge - Intro

An episode of the NSScreencast (free videos) podcast, hosted by Ben Scheirman, titled "#604 - Billion Row Challenge - Intro" was published on January 23, 2026.

January 23, 2026 · NSScreencast (free videos)

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In this episode, I am thrilled to be joined by Matt Massicotte to kick off the "1 Billion Row Challenge" in Swift. The goal is to efficiently parse a massive file containing weather station data and calculate the min, max, and mean temperatures for each city. We set up a Swift package, explore basic file I/O methods, memory mapping, chunked reading, and implement a naive solution that processes the data and sets the stage for significant optimization in upcoming episodes.

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