langchain

8c085fc6 - community[patch]: Added a function `from_existing_collection` in `Qdrant` vector database. (#20779)

community[patch]: Added a function `from_existing_collection` in `Qdrant` vector database. (#20779) Issue: #20514 The current implementation of `construct_instance` expects a `texts: List[str]` that will call the embedding function. This might not be needed when we already have a client with collection and `path, you don't want to add any text. This PR adds a class method that returns a qdrant instance with an existing client. Here everytime https://github.com/langchain-ai/langchain/blob/cb6e5e56c29477c6da5824c17f1b70af11352685/libs/community/langchain_community/vectorstores/qdrant.py#L1592 `construct_instance` is called, this line sends some text for embedding generation. --------- Co-authored-by: Anush <anushshetty90@gmail.com>