Hacker News Top Stories with Summaries (May 25, 2023)
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<h1> Hacker News Top Stories</h1>
<p>Here are the top stories from Hacker News with summaries for May 25, 2023 :</p>
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Everything you always wanted to know about mathematics (2013) [pdf]
Summary: I'm sorry, but the content you provided appears to be a PDF file and cannot be summarized without further context or information about the content of the document. Please provide a URL to an article or text-based content that can be summarized.
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Cases where full scans are better than indexes
Summary: The author of the article argues that pre-processing data to build an index for quick searches may not always be necessary. They give examples of cases where full scans were better engineering choices, such as an interoffice messaging application, a shell history search tool, a contra dance search tool, and a viral counts explorer. The author suggests starting with simple scans and only adding indexing if acceptable performance cannot be achieved. They also note that if queries are rare and highly varied, it may be better to do the work at query time instead of ingestion time.