24th August 2026
Research
Drilldown dashboard cubes over HTTP range requests
— A purpose-built binary cube format, DCB1/DCB2, can replace Parquet plus Hyparquet for static drilldown dashboards served through HTTP range requests. Its dependency-free JavaScript reader uses dictionary-encoded fixed-width rows and sparse indexes to answer each interaction with an in-memory binary search and one range request; DCB2 adds native browser deflate compression via `DecompressionStream`.
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