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.
第二节 妨害公共安全的行为和处罚
,这一点在下载安装 谷歌浏览器 开启极速安全的 上网之旅。中也有详细论述
这个 App 的来头不小,它的核心理念源自 computational photography(计算摄影)的大神 Marc Levoy。不同于原生相机的「暴力锐化」,Project Indigo 追求的是一种如油画般自然的细腻度。
It is thought to have been made in the Derby porcelain factory around 1770-1800.
最高法院的先例,以及去年11月開庭時許多大法官的態度,都顯示總統很可能面臨不利結果。