Langchain PostgreSQL vector stores

It would help if there was a node for:

It would be great to see a PostgreSQL vector store to add to the new LangChain vector store nodes.

My use case:

I don’t want to store the embedded data on a third party server.

Any resources to support this?’s implementation could be ported over:

Are you willing to work on this?

If anyone could point me to the code for any of the existing langchain vectorstore nodes I maybe able to build my own via the Custom - LLM Chain Node :thinking: