[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間:2025-09-04 (世界標準時間)。"],[],[],null,["# About vector search\n\nMemorystore for Redis supports storing and querying vector data. This page provides\ninformation about vector search on Memorystore for Redis.\n| **Important:** To use vector search, your instance must use Redis version 7.2 or newer. To use this feature, either [create](/memorystore/docs/redis/create-manage-instances) or [upgrade](/memorystore/docs/redis/upgrade-redis-version) your instance to Redis version 7.2.\n\nVector search on Memorystore for Redis is compatible with the open-source LLM\nframework [LangChain](https://python.langchain.com/docs/get_started/introduction).\nUsing vector search with LangChain lets you build solutions for the following\nuse cases:\n\n- Retrieval Augmented Generation (RAG)\n- LLM cache\n- Recommendation engine\n- Semantic search\n- Image similarity search\n\nThe advantage of using Memorystore to store your generative AI data is Memorystore's speed. Vector\nsearch on Memorystore for Redis leverages multi-threaded queries, resulting in\nhigh query throughput (QPS) at low latency.\n\nMemorystore also provides two distinct search approaches to help you find the right balance between speed and accuracy. The HNSW (Hierarchical Navigable Small World) option delivers fast, approximate results - ideal for large datasets where a close match is sufficient. If you require absolute precision, the 'FLAT' approach produces exact answers, though it may take slightly longer to process.\n\nIf you want to optimize your application for the fastest vector data read and write\nspeeds, Memorystore for Redis is likely the best option for you."]]