[whilo]

Hi HN - I’m the author of Stratum.

The headline benchmark result is that on 10M rows, Stratum is faster than DuckDB on 35 of 46 single-threaded analytical queries, despite running entirely on the JVM.

But the main idea is actually branchable tables: you can fork a table in O(1), keep copy-on-write snapshots, and query different branches through SQL.

It speaks the PostgreSQL wire protocol, so psql/JDBC/DBeaver work out of the box.

Benchmarks, methodology, and repo are linked from the page. Happy to answer questions.