I am using locally persisted DuckDB vector store(
https://docs.llamaindex.ai/en/stable/examples/vector_stores/DuckDBDemo/) for my RAG app. I am observing two strange behavior: 1) If i add 74KB file into a persisted duckdb file, it increase the file of updated duckdb file by 5MB and on a second instance it increase the existing duckdb file (950MB) by 300 MB by just adding 3 more PDFs of 5MB each. 2) If i delete the newly added docs, the edited duckdb file size doesn't goes back to original size, in fact it stays the same as it was before deletion. I'm using .add and .delete methods to add(nodes) or delete(docs_ids). Can anybody provide any hint? Thanks.
