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.
Here were a bunch of goofballs writing terrible AppleSoft BASIC code like me, but doing it for a living – and clearly having fun in the process. Apparently, the best way to create fun programs for users is to make sure you had fun writing them in the first place.,更多细节参见Safew下载
Now let’s revisit the selector wildcard examples from the beginning using BPatterns.。91视频对此有专业解读
屯头村人家大门上,门楣多是大字的“家和万事兴”。“家和”,村和,国和。源源不断的宫灯,带着中国红从屯头村走向全国。
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