Internal index shape: the lines loader carries both vertex and
segment chunk bounds. Only the segment side feeds SpatialQueryBuilder;
the vertex side is kept so the loader can compute byte counts and
(in the future) re-enable vertex-driven prefetching.
Internal index shape: the lines loader carries both vertex and segment chunk bounds. Only the segment side feeds
SpatialQueryBuilder; the vertex side is kept so the loader can compute byte counts and (in the future) re-enable vertex-driven prefetching.