A Row is key + vector + optional metadata + optional document attachment + optional lineage.

Client → collections → rows. Rows are the only objects the index sees.

python

notes.add(
    embedding=[0.1] * 128,
    metadata={"author": "ann", "kind": "design"},
)

embedding — fixed dimension per database; set when you create the Client, immutable after
metadata — arbitrary dict-shaped values, JSON-compatible
key — string id, auto-generated unless you pass id=
document, chunk, lineage — optional, populated by add(documents=...)