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Pythonlanggraph.checkpoint.postgresaioAsyncPostgresSaveraget_delta_channel_history

Method●Since v3.1

aget_delta_channel_history

Copy

aget_delta_channel_history(
  self,
  *,
  config: RunnableConfig,
  channels: Sequence[str]
) ->

View source on GitHub

[

,

DeltaChannelHistory

]

Fast-path override of BaseCheckpointSaver.aget_delta_channel_history.

See PostgresSaver.get_delta_channel_history for design notes; this is the async equivalent with internal stage-1 paging and per-channel UNION ALL stage-2.