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Milvus

Milvus 是一个为嵌入相似性搜索和 AI 应用构建的向量数据库。

¥Milvus is a vector database built for embeddings similarity search and AI applications.

Compatibility

仅在 Node.js 上可用。

¥Only available on Node.js.

设置​

¥Setup

  1. 在你的计算机上使用 Docker 运行 Milvus 实例 docs

    ¥Run Milvus instance with Docker on your computer docs

  2. 安装 Milvus Node.js SDK。

    ¥Install the Milvus Node.js SDK.

    npm install -S @zilliz/milvus2-sdk-node

  3. 运行代码前，请为 Milvus 设置环境变量

    ¥Setup Env variables for Milvus before running the code

    3.1 OpenAI

    export OPENAI_API_KEY=YOUR_OPENAI_API_KEY_HERE
    export MILVUS_URL=YOUR_MILVUS_URL_HERE # for example http://localhost:19530

    3.2 Azure OpenAI

    export AZURE_OPENAI_API_KEY=YOUR_AZURE_OPENAI_API_KEY_HERE
    export AZURE_OPENAI_API_INSTANCE_NAME=YOUR_AZURE_OPENAI_INSTANCE_NAME_HERE
    export AZURE_OPENAI_API_DEPLOYMENT_NAME=YOUR_AZURE_OPENAI_DEPLOYMENT_NAME_HERE
    export AZURE_OPENAI_API_COMPLETIONS_DEPLOYMENT_NAME=YOUR_AZURE_OPENAI_COMPLETIONS_DEPLOYMENT_NAME_HERE
    export AZURE_OPENAI_API_EMBEDDINGS_DEPLOYMENT_NAME=YOUR_AZURE_OPENAI_EMBEDDINGS_DEPLOYMENT_NAME_HERE
    export AZURE_OPENAI_API_VERSION=YOUR_AZURE_OPENAI_API_VERSION_HERE
    export AZURE_OPENAI_BASE_PATH=YOUR_AZURE_OPENAI_BASE_PATH_HERE
    export MILVUS_URL=YOUR_MILVUS_URL_HERE # for example http://localhost:19530

索引和查询文档​

¥Index and query docs

tip

请参阅 此部分包含有关安装集成包的一般说明。

¥See this section for general instructions on installing integration packages.

npm install @langchain/openai @langchain/core
import { Milvus } from "langchain/vectorstores/milvus";
import { OpenAIEmbeddings } from "@langchain/openai";

// text sample from Godel, Escher, Bach
const vectorStore = await Milvus.fromTexts(
  [
    "Tortoise: Labyrinth? Labyrinth? Could it Are we in the notorious Little\
            Harmonic Labyrinth of the dreaded Majotaur?",
    "Achilles: Yiikes! What is that?",
    "Tortoise: They say-although I person never believed it myself-that an I\
            Majotaur has created a tiny labyrinth sits in a pit in the middle of\
            it, waiting innocent victims to get lost in its fears complexity.\
            Then, when they wander and dazed into the center, he laughs and\
            laughs at them-so hard, that he laughs them to death!",
    "Achilles: Oh, no!",
    "Tortoise: But it's only a myth. Courage, Achilles.",
  ],
  [{ id: 2 }, { id: 1 }, { id: 3 }, { id: 4 }, { id: 5 }],
  new OpenAIEmbeddings(),
  {
    collectionName: "goldel_escher_bach",
  }
);

// or alternatively from docs
const vectorStore = await Milvus.fromDocuments(docs, new OpenAIEmbeddings(), {
  collectionName: "goldel_escher_bach",
});

const response = await vectorStore.similaritySearch("scared", 2);

从现有集合中查询文档​

¥Query docs from existing collection

import { Milvus } from "langchain/vectorstores/milvus";
import { OpenAIEmbeddings } from "@langchain/openai";

const vectorStore = await Milvus.fromExistingCollection(
  new OpenAIEmbeddings(),
  {
    collectionName: "goldel_escher_bach",
  }
);

const response = await vectorStore.similaritySearch("scared", 2);

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