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Stratum is a columnar SQL engine with git-like branching semantics and copy-on-write structural sharing that beats DuckDB on 35 of 46 single-threaded analytical benchmarks using Java Vector API SIMD execution. It enables zero-copy dataset forking, time-travel queries, and reproducible experiments without data duplication.

Stratum DuckDB Datahike Datomic PostgreSQL Java Vector API Clojure TPC-H H2O konserve tablecloth tech.ml.dataset
datahike.io · whilo · 1 day ago · details · hn