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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"Any day in his life can turn out like that," he said. "It can be good bits, and then it can be awful bits and aggressive bits and upsetting bits. And that's just what the Tourette's does. It's nasty."
2026-02-28 00:00:00:0本报记者 万秀斌 邵玉姿 深化机制创新 重点区域示范 重点领域突破
Number (12): Everything in this space must add up to 12. The answer is 2-6, placed vertically; 6-1, placed vertically.