Postgres memory on a MultiAgent

[DiegoRamos-SB]

You know if it´s possible to use the Postgress memory on a Multi-Agent System?

I´ve tried to use and the agent itself works, but does´nt sends data to my Postgress database. It´s important to note that I try to implement the same memory on a single agent and it works perfectly.

[hinthornw]

Hi Diego, this is what is used in LangGraph Cloud! Checkpointers are inherited by default, meaning that graphs run within other graphs would save checkpoints for themselves (namespaced by the node in which they're run)

Do you have more code as an example?

As an aside - we are working on an imperative API that would be scoped beyond / outside of threads for persisting memory across conversations that you may find useful once we roll it out

[philikai]

@hinthornw
Same problem for me - I tried to use the 'langgraph.store.postgres', but on the latest version on pypi it seems like this module is not available. I do see on GH that it is already implemented. Any timeline till it makes it to the package?

Do I assume correctly that till it is in the package, we need to use it from the repo directly?

@langgraph 0.2.72:
ModuleNotFoundError: No module named 'langgraph.store.postgres'