langchain_postgres
0.0.3¶
langchain_postgres.chat_message_histories
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Client for persisting chat message history in a Postgres database.
This client provides support for both sync and async via psycopg 3.
Classes¶
Client for persisting chat message history in a Postgres database, |
langchain_postgres.checkpoint
¶
Implementation of a langgraph checkpoint saver using Postgres.
Classes¶
A serializer for serializing and deserializing objects to and from bytes. |
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Use the pickle module to serialize and deserialize objects. |
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LangGraph checkpoint saver for Postgres. |
langchain_postgres.vectorstores
¶
Classes¶
Enumerator of the Distance strategies. |
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Vectorstore implementation using Postgres as the backend. |