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checkpoint postgres: add a shallow checkpointer #2826

Merged

vbarda merged 14 commits into main from vb/add-shallow-checkpointer

Dec 20, 2024

-Original file line number
+Diff line change
@@ -1,4 +1,4 @@
     import threading
     from collections.abc import Iterator, Sequence
     from contextlib import contextmanager
     from typing import Any, Optional
@@ Expand All / @@ -19,6 +19,7 @@ @@
     )
     from langgraph.checkpoint.postgres import _internal
     from langgraph.checkpoint.postgres.base import BasePostgresSaver
+    from langgraph.checkpoint.postgres.shallow import ShallowPostgresSaver
     from langgraph.checkpoint.serde.base import SerializerProtocol
     Conn = _internal.Conn  # For backward compatibility
@@ Expand Down Expand Up / @@ -396,4 +397,4 @@ @@
                         yield cur
-    __all__ = ["PostgresSaver", "BasePostgresSaver", "Conn"]
+    __all__ = ["PostgresSaver", "BasePostgresSaver", "ShallowPostgresSaver", "Conn"]

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