图为龙妈妈要求儿子解除手机设置的聊天记录
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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.
Claude 新工具冲击遗留系统业务，IBM 股价创 26 年最大跌幅
大人不记小人过。大人不是指中老年，指的是胸怀宽广者，小人也不是指小孩子，早已读过书、知廉耻是非，明知错而故犯，事到临头求人“宽容”，认错之心是否诚恳，就有些值得怀疑了。网络时代，类似的事其实并不少见。