Pgvector's latest release introduces quantization features like scalar and binary quantization, significantly enhancing storage efficiency and performance. The new half-precision 'halfvec' type reduces vector and index storage by 50% without compromising query performance. While scalar quantization shows impressive gains, binary quantization's recall with high-dimensional embeddings needs further exploration.

4m read timeFrom neon.tech
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What is quantization?Testing setupHow scalar quantization improves pgvector performanceTesting binary quantizationConclusion

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