节点与集成
Question and Answer Chain
Use the Question and Answer Chain node to use a vector store1 as a retriever.
On this page, you'll find the node parameters for the Question and Answer Chain node, and links to more resources.
Node parameters
Query
The question you want to ask.
Templates and examples
Browse n8n-nodes-langchain.chainretrievalqa integration templates or search all templates
Related resources
Refer to LangChain's documentation on retrieval chains for examples of how LangChain can use a vector store as a retriever.
View n8n's Advanced AI documentation.
Common issues
For common errors or issues and suggested resolution steps, refer to Common Issues.
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.
官方原文和授权
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