Get index distribution for a metadata field

Hey everyone,

I’ve successfully inserted some documents to Pinecone. Each document has a record called “source” which says where this document came from. Is there a way to query this information from Pinecone after the initial digestion?

I’d like to get an object that says:

{"jira": 120, "trello": 182, "gdrive": 500}

Is there a way to do that?