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Documentation Index

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This page covers how to use the Postgres PGVector ecosystem within LangChain It is broken into two parts: installation and setup, and then references to specific PGVector wrappers.

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安装

  • Install the Python 包 with pip install pgvector

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设置

  1. The first step is to create a database with the pgvector extension installed. Follow the steps at PGVector Installation Steps to install the database and the extension. The docker image is the easiest way to get started.

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Wrappers

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向量存储

存在一个围绕 Postgres 向量数据库的封装器，允许您将其用作向量存储， 无论是用于语义搜索还是示例选择。 要导入此向量存储： 
from langchain_community.vectorstores.pgvector import PGVector

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使用方法

有关 PGVector Wrapper, see this notebook
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