---
title: Postgres Chat Memory node documentation
description: Learn how to use the Postgres Chat Memory node in n8n. Follow technical documentation to integrate Postgres Chat Memory node into your workflows.
contentType: [integration, reference]
---

# Postgres Chat Memory node

Use the Postgres Chat Memory node to use Postgres as a [memory](/glossary.md#ai-memory) server for storing chat history.

On this page, you'll find a list of operations the Postgres Chat Memory node supports, and links to more resources.

/// note | Credentials
You can find authentication information for this node [here](/integrations/builtin/credentials/postgres.md).
///

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## Node parameters

* **Session Key**: Enter the key to use to store the memory in the workflow data.
* **Table Name**: Enter the name of the table to store the chat history in. The system will create the table if doesn't exist.
* **Context Window Length**: Enter the number of previous interactions to consider for context.

## Related resources

Refer to [LangChain's Postgres Chat Message History documentation](https://js.langchain.com/docs/integrations/memory/postgres) for more information about the service.

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## Single memory instance

[[% include "_includes/integrations/cluster-nodes/memory-shared.html" %]]