Sketches
Self-contained HTML sketches, diagrams, and visual notes.
Lance Stable Row IDs as Birth Addresses
How Lance 2.3 stable row ids equal their birth address, resolve through identity plus a relocation view transposed from fragment metadata, and make mutation cost land on moved rows only.
Lance FTS V3 Block-Row Layout
How Lance FTS V3 splits posting lists into block rows, enables selective cache and block-level planning, and exposes the remaining cold-read work.
Lance Planar Page Layout
How Lance 2.3 rebuilds page layout as a structural plane times a value plane, turning five layouts into cells of one matrix with bytes unchanged.
Lance Discrete Sparse Layout
A visual design note for Lance sparse structural encoding and why slot-domain mappings improve sparse nested data.
Lance Blob Preparation API
How Lance Blob v2 separates sidecar preparation from data-file writes and existing transactions.
SQ Affine Offset
Why SQ Dot must use the affine offset.