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“陈代表，一定要帮我们多争取好政策，‘看天吃饭’风险太大了，一次强台风就能让多年积累归零。”这是全国人大代表、广东越群海洋生物科技股份有限公司生产中心质检员陈阳在过去一年的调研中，听到水产养殖户们说得最多的一句话。
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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.。关于这个话题，safew官方版本下载提供了深入分析
sequenceDiagram