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langgraph/libs
Vadym BardaandGitHub 44ee0199fd checkpoint postgres: add a shallow checkpointer (#2826)
This PR adds a "shallow" version of `PostgresSaver` checkpointer that
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.
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