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.
21 hours agoShareSave。91视频是该领域的重要参考
随着一系列非法买卖出生医学证明的事件曝光，《出生医学证明》的签发进一步收紧。重庆、湖南等多地的助产医院逐步应用人脸识别技术，在待产、分娩等关键节点开展“刷脸比对”。。业内人士推荐搜狗输入法2026作为进阶阅读
You’ll get up to 40 minutes of run time, with two power modes: a standard mode for general cleaning and a Max mode for more intensive spots. It's lightweight and easy to manoeuvre, and it also converts into a handheld vacuum for cars, stairs, and upholstery.
36氪获悉，2月26日收盘，美股三大指数涨跌不一，纳指跌1.18%，标普500指数跌0.54%，道指涨0.03%。大型科技股多数下跌，英伟达跌超5%，市值蒸发2592亿美元（约合人民币1.77万亿元）创去年4月16日以来最大单日跌幅；英特尔跌超3%，特斯拉跌超2%，谷歌、亚马逊跌超1%，苹果小幅下跌；奈飞涨超2%，微软、Meta小幅上涨。热门中概股普跌，百度跌超5%，哔哩哔哩、爱奇艺跌超3%，阿里巴巴、京东、理想汽车、小鹏汽车跌超2%，拼多多、蔚来跌超1%。