A checkpoint saver that uses Postgres to store checkpoints.
This checkpointer ONLY stores the most recent checkpoint and does NOT retain any history. It is meant to be a light-weight drop-in replacement for the PostgresSaver that supports most of the LangGraph persistence functionality with the exception of time travel.
A checkpoint saver that uses Postgres to store checkpoints asynchronously.
This checkpointer ONLY stores the most recent checkpoint and does NOT retain any history. It is meant to be a light-weight drop-in replacement for the AsyncPostgresSaver that supports most of the LangGraph persistence functionality with the exception of time travel.
