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chore: Add deprecation warning for PGVector #246

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chore: Add deprecation warning for PGVector #246

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7 changes: 7 additions & 0 deletions langchain_postgres/vectorstores.py
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Original file line number Diff line number Diff line change
Expand Up @@ -429,6 +429,13 @@ def __init__(
self._async_engine: Optional[AsyncEngine] = None
self._async_init = False

warnings.warn(
"PGVector is being deprecated and will be removed in the future. "
"Please migrate to PGVectorStore. "
"Refer to the migration guide at [https://github.com/langchain-ai/langchain-postgres/blob/main/examples/migrate_pgvector_to_pgvectorstore.md] for details.",
PendingDeprecationWarning,
)

if isinstance(connection, str):
if async_mode:
self._async_engine = create_async_engine(
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