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.
04:43, 28 февраля 2026Мир
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很多伟大作曲家的音乐，往往比表面听起来要悲伤得多，因为他们都经历过极其复杂的人生处境，而不是整天在五星级酒店里创作。无论是失聪后的贝多芬，还是舒曼、勃拉姆斯、肖邦，甚至临终前写下《安魂曲》的莫扎特，这些音乐都诞生于一种并不“正常”的心理状态之中。舒伯特尤为如此，即便是在大调作品中，看似不那么痛苦，音乐依然带着深重的哀伤。比如《降G大调即兴曲》，很多人只会觉得它非常美，但我听到的却是一种深刻的悲伤，它会让人怀旧，想到过去的生命经验，想到那些已经不复存在的美好时光。舒伯特在承受当下的痛苦时，常常在回望，有时他会把这种痛苦写得非常直接，有时则更为隐晦，但无论如何，那种重量始终存在。
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