Британец Шон Холланд пил так много, что за 9 лет у него развились сразу несколько тяжелых заболеваний, а моча приобрела черный цвет. Своей историей 27-летний ландшафтный дизайнер поделился с изданием Mirror.
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.
。关于这个话题，Line官方版本下载提供了深入分析
输入：num = "1432219", k = 3。关于这个话题，Line官方版本下载提供了深入分析
I found one dumb free win (I mistakenly used value receivers on a utility function called on a large struct thousands of times a frame). But the rest of the speedups I found took more effort.
母亲却表现出不悦：“你怎么总把人心想得那么坏？我学点新东西，发挥点余热，有什么不好？难道我什么都不做，你就高兴了？”