Technology Radar
Published : Apr 02, 2025
NOT ON THE CURRENT EDITION
This blip is not on the current edition of the Radar. If it was on one of the last few editions, it is likely that it is still relevant. If the blip is older, it might no longer be relevant and our assessment might be different today. Unfortunately, we simply don't have the bandwidth to continuously review blips from previous editions of the Radar.
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Apr 2025
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VectorChord 是一个用于向量相似性搜索的 PostgreSQL 扩展，由 pgvecto.rs 的创建者开发，作为其继任者。它是开源的，与 pgvector 数据类型兼容，并且专为磁盘高效和高性能的向量搜索而设计。它采用 IVF（倒排文件索引）以及 RaBitQ 量化技术，能够实现快速、可扩展且准确的向量搜索，同时显著降低计算需求。与该领域其他 PostgreSQL 扩展一样，它利用了 PostgreSQL 的生态系统，使向量搜索能够与标准事务操作并行执行。尽管 VectorChord 仍处于早期阶段，但对于向量搜索的工作负载，值得您进行评估。
