Langchain deleting with Metadata filtering

Support
1

I’m using pinecone API which from:

from langchain_pinecone import PineconeVectorStore

and the delete code is like:

vectorstore.delete(filter=meta_data)

then got exception:

HTTP response body: {“code”:3,“message”:“Serverless and Starter indexes do not support deleting with metadata filtering.”,“details”:}

could you confirm?

2

Hello @music1913, welcome to the forums.

  • What version of langchain are you using?
  • What type of index are you using?

If it’s a Serverless index, then deleting via metadata is not supported. We are recommending using key-prefixing, this might be a case where Langchain needs to be updated.

In the meantime one work around is to use the a pod-base index.

3

Just wanted to come back here and announce that delete-by-metadata is now supported on all Pinecone indexes including Serverless. Thanks for all your patience!