Postgres has its own primitives for things that forges currently build custom infrastructure around. A trigger on the refs table firing NOTIFY means any connected client learns about a push the moment it happens, which is how forges normally end up building a custom webhook polling layer. Multi-tenant repo isolation becomes a database concern through row-level security on the objects and refs tables, and logical replication lets you selectively stream repositories across Postgres instances, a kind of partial mirroring that filesystem-based git can’t do. Commit graph traversal for ancestry queries and merge-base computation falls to recursive CTEs, and pg_trgm indexes on blob content give you substring search across all repositories without standing up a separate search index.
展望2026年，随着咖啡行业“万店俱乐部”竞争日趋激烈，外卖渠道的竞争将从价格补贴转向服务与体验的比拼。对于瑞幸而言，如何进一步释放规模效应、优化外卖渠道成本结构，同时通过产品创新与精细化运营提升用户价值，将成为破解盈利困局、巩固龙头地位的关键。（作者 | 谢璇，编辑 | 房煜）
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中国减贫实践，对人类减贫有什么借鉴意义？