langgraph

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Sydney RunkleandClaude Opus 4.7 52eff14077 fix(postgres): handle missing checkpoint_id in _get_channel_writes_history; update test signatures

Two fixes exposed by running the postgres test suite against a local
postgres instance:

1. `PostgresSaver._get_channel_writes_history` /
   `AsyncPostgresSaver._aget_channel_writes_history` required
   `checkpoint_id` in the passed config, raising `KeyError` when called
   with just `thread_id` (e.g. `graph.aget_state({"thread_id": "..."})`).
   Now resolves to the latest checkpoint via `get_tuple`/`aget_tuple`
   when the id is missing.

2. `test_get_checkpoint_no_channel_values` (sync + async) monkeypatched
   `_load_checkpoint_tuple` with the old `(value, cur)` signature. Method
   now takes `(value)` only since delta reconstruction moved out of the
   tuple-load path — updated both tests.

Local postgres (`brew install pgvector postgresql@16`, running on port
5441) now exercises all 40 non-vector postgres tests green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-04-30 14:49:05 -04:00

__init__.py

feat: Add vector search (#2535 )

2024-11-28 04:40:12 +00:00

compose-postgres.yml

feat: Add vector search (#2535 )

2024-11-28 04:40:12 +00:00

conftest.py

Fixup initial provisioning of aio postgres db (#2571 ) (#2600 )

2024-12-03 01:55:26 +00:00

embed_test_utils.py

feat: Add vector search (#2535 )