基于PostgreSQL的Listen-Notify和Server-Sent Events技术组合，实现数据库变化捕获和实时通知的工程实践方案。
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数据变化捕获和实时通知——基于Listen-Notify和Server-Sent Events文章性质：工程实践，原创内容主要是技术的组合（俗称API调用师）设计思路：触发器——Listen-Notify——SSE——BroadcastChannel自荐感言：监听数据库，虽然是设计上的一种妥协，但仍有一定的适用场景和实践价值。
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