节点与集成
Qdrant Vector Store
Use the Qdrant node to interact with your Qdrant collection as a vector store1. You can insert documents into a vector database, get documents from a vector database, retrieve documents to provide them to a retriever connected to a chain2 or connect it directly to an agent3 to use as a tool4.
On this page, you'll find the node parameters for the Qdrant node, and links to more resources.
Node usage patterns
You can use the Qdrant Vector Store node in the following patterns.
Use as a regular node to insert and retrieve documents
You can use the Qdrant Vector Store as a regular node to insert or get documents. This pattern places the Qdrant Vector Store in the regular connection flow without using an agent.
You can see an example of this in the first part of this template.
Connect directly to an AI agent as a tool
You can connect the Qdrant Vector Store node directly to the tool connector of an AI agent to use a vector store as a resource when answering queries.
Here, the connection would be: AI agent (tools connector) -> Qdrant Vector Store node.
Use a retriever to fetch documents
You can use the Vector Store Retriever node with the Qdrant Vector Store node to fetch documents from the Qdrant Vector Store node. This is often used with the Question and Answer Chain node to fetch documents from the vector store that match the given chat input.
An example of the connection flow would be: Question and Answer Chain (Retriever connector) -> Vector Store Retriever (Vector Store connector) -> Qdrant Vector Store.
Use the Vector Store Question Answer Tool to answer questions
Another pattern uses the Vector Store Question Answer Tool to summarize results and answer questions from the Qdrant Vector Store node. Rather than connecting the Qdrant Vector Store directly as a tool, this pattern uses a tool specifically designed to summarizes data in the vector store.
The connections flow in this case would look like this: AI agent (tools connector) -> Vector Store Question Answer Tool (Vector Store connector) -> Qdrant Vector store.
Node parameters
This Vector Store node has four modes: Get Many, Insert Documents, Retrieve Documents (As Vector Store for Chain/Tool), and Retrieve Documents (As Tool for AI Agent). The mode you select determines the operations you can perform with the node and what inputs and outputs are available.
Rerank Results
Enables reranking. If you enable this option, you must connect a reranking node to the vector store. That node will then rerank the results for queries. You can use this option with the Get Many, Retrieve Documents (As Vector Store for Chain/Tool) and Retrieve Documents (As Tool for AI Agent) modes.
Get Many parameters
- Qdrant collection name: Enter the name of the Qdrant collection to use.
- Prompt: Enter the search query.
- Limit: Enter how many results to retrieve from the vector store. For example, set this to
10to get the ten best results.
This Operation Mode includes one Node option, the Metadata Filter.
Insert Documents parameters
- Qdrant collection name: Enter the name of the Qdrant collection to use.
This Operation Mode includes one Node option:
- Collection Config: Enter JSON options for creating a Qdrant collection creation configuration. Refer to the Qdrant Collections documentation for more information.
Retrieve Documents (As Vector Store for Chain/Tool) parameters
- Qdrant Collection: Enter the name of the Qdrant collection to use.
This Operation Mode includes one Node option, the Metadata Filter.
Retrieve Documents (As Tool for AI Agent) parameters
- Name: The name of the vector store.
- Description: Explain to the LLM what this tool does. A good, specific description allows LLMs to produce expected results more often.
- Qdrant Collection: Enter the name of the Qdrant collection to use.
- Limit: Enter how many results to retrieve from the vector store. For example, set this to
10to get the ten best results.
Node options
Metadata Filter
Available in Get Many mode. When searching for data, use this to match with metadata associated with the document.
This is an AND query. If you specify more than one metadata filter field, all of them must match.
When inserting data, the metadata is set using the document loader. Refer to Default Data Loader for more information on loading documents.
Templates and examples
Browse Qdrant Vector Store node documentation integration templates or search all templates
Related resources
Refer to LangChain's Qdrant documentation for more information about the service.
View n8n's Advanced AI documentation.
New to working with AI and using self-hosted n8n? Try n8n's self-hosted AI Starter Kit to get started with a proof-of-concept or demo playground using Ollama, Qdrant, and PostgreSQL.
Footnotes
- Back
A vector store, or vector database, stores mathematical representations of information. Use with embeddings and retrievers to create a database that your AI can access when answering questions.
- Back
AI chains allow you to interact with large language models (LLMs) and other resources in sequences of calls to components. AI chains in n8n don't use persistent memory, so you can't use them to reference previous context (use AI agents for this).
- Back
AI agents are artificial intelligence systems capable of responding to requests, making decisions, and performing real-world tasks for users. They use large language models (LLMs) to interpret user input and make decisions about how to best process requests using the information and resources they have available.
- Back
In an AI context, a tool is an add-on resource that the AI can refer to for specific information or functionality when responding to a request. The AI model can use a tool to interact with external systems or complete specific, focused tasks.
官方原文和授权
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