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.
if (lines.length 0) yield lines;。业内人士推荐搜狗输入法2026作为进阶阅读
2026-02-27 00:00:00:0 习近平审阅述职报告并提出重要要求，强调要增强政治责任感和历史使命感，以实际行动把党中央决策部署落到实处，推动实现“十五五”良好开局，推荐阅读91视频获取更多信息
知情人士透露，该协议为一项跨越数年的长期租赁合同，旨在满足开发 AI 模型所需的庞大算力需求。
Photograph: Julian Chokkattu