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.
res[realIdx] = stack.length ? stack.at(-1) : -1;
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人気記事ランキング直近24時間（1時間ごとに更新。5分ごとはこちら）。关于这个话题，同城约会提供了深入分析
The public inquiry into the Covid pandemic has cost the government more than £100m to respond to so far, the BBC has learnt. This is on top of the £192m spent by the inquiry itself - meaning the cost to the taxpayer is over 50% more than previously thought.
2025年前三季度，该公司工业机器人及自动化应用系统业务实现营业收入5.45亿元，同比增长2.34%，但该业务毛利率同比下降0.1个百分点。