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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.，这一点在咪咕体育直播在线免费看中也有详细论述
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— Daniela Amodei, tweet, May 2021
粤开证券首席经济学家罗志恒对南方周末记者解释，中国资本市场的走势主要还是“以我为主”，即上市公司质量、资本市场制度和风险偏好是关键。内部因素是长期的、根本性的，外部因素是短期的、阶段性的。，更多细节参见体育直播