Alarm bells are ringing in the UK research community. Physics departments may close and researchers leave the UK. What is happening and why?
Git packfiles use delta compression, storing only the diff when a 10MB file changes by one line, while the objects table stores each version in full. A file modified 100 times takes about 1GB in Postgres versus maybe 50MB in a packfile. Postgres does TOAST and compress large values, but that’s compressing individual objects in isolation, not delta-compressing across versions the way packfiles do, so the storage overhead is real. A delta-compression layer that periodically repacks objects within Postgres, or offloads large blobs to S3 the way LFS does, is a natural next step. For most repositories it still won’t matter since the median repo is small and disk is cheap, and GitHub’s Spokes system made a similar trade-off years ago, storing three full uncompressed copies of every repository across data centres because redundancy and operational simplicity beat storage efficiency even at hundreds of exabytes.
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李时珍在《本草纲目》中提到：“蜡梅，释名黄梅花。此物本非梅类，因其与梅同时，香又相近，色似蜜蜡，故得此名。”
Ранее в России подсчитали доходы от экспорта одного вида алкоголя. Так, страна заработала на экспорте шампанского почти пять миллионов долларов.
✨ 记住：没有最好的算法，只有最适合的算法！