Expand description
Vector segment payloads in node-id order, and the check that a stored segment serves the nodes of the index it is attached to.
A segment backs a graph-only checkpoint positionally: slot i holds the
vector of node i. The payload is therefore laid out in node-id order,
and each slot’s surrogate records the document bound to that node as a
[doc_fingerprint]. On load, [segment_serves_index] compares those
fingerprints with the id map, so a segment written for another node
order is refused and the index is rebuilt from the durable rows.