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Vorcyc Quiver 4.0.1 — English Wiki

Product Positioning: A pure .NET embedded vector database — zero native dependencies, runs in-process, no standalone database server deployment required. Framework Version: .NET 10 Namespace: Vorcyc.Quiver Design Philosophy: Similar to EF Core's DbContext pattern — automatic discovery, index construction, and persistence via declarative attribute annotations.

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Table of Contents

Release & Overview

• 01. Release Notes (v4.0.1 / Wave 2 / Wave 3 and historical versions)
• 02. Product Overview

Getting Started

• 03. Architecture Overview
• 04. Quick Start
• 05. Core Concepts (Entities / Context / QuiverSet)

Retrieval Basics

• 06. Distance Metrics (9 built-in + custom ISimilarity)
• 07. Index Types (Flat / HNSW / IVF / KDTree)
• 08. CRUD Operations
• 09. Vector Search (Top-K / Threshold / Filtered / Async)

Storage & Evolution

• 10. Persistent Storage (QDB\x04 segment format)
• 11. Migration System (format vs schema migration)
• 11a. Schema Migration (schema evolution details)
• 12. Multi-Vector Field Support

Runtime

• 13. Thread Safety and Concurrency
• 14. Lifecycle Management
• 15. Configuration Options

Deep Dive

• 16. Internal Implementation Details
• 17. Complete Examples
• 18. API Reference Cheat Sheet
• 19. Usage Recommendations (lazy loading / mmap / Blob / HNSW Snapshot)

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Keywords

Embedded Vector Database · Pure .NET · ANN · HNSW · IVF · KDTree · Code-First · Embedding · Semantic Search · Face Recognition · RAG · SIMD · Schema Migration · ISimilarity · Mmap · SQ8 Quantization · Matryoshka Truncation

Name Origin: Quiver — a container for arrows; a vector is mathematically an arrow.