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.
This is quick because it's operating on a very small, localized part of the map.
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Канцлер Германии Фридрих Мерц выступил в защиту своего поведения во время встречи с президентом США Дональдом Трампом в Белом доме, передает ТАСС.。业内人士推荐新收录的资料作为进阶阅读
阿里已安排前DeepMind高级资深研究员周浩接手相关工作，直接向周靖人汇报。截至发稿，林俊旸未就其离职细节及后续去向公开发表进一步说明。