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Show HN: ClickBench Playground – a playground for 110 database systems(benchmark.clickhouse.com)
3 points by zX41ZdbW 2 hours ago | 1 comments

I created it mostly for testing and exploration, but the main reason was that it became possible after previous work.

eterm 2 hours ago | parent [-]

That's actually neat, I can finally do a full sweep of something I found after the recent post about Lobsters migration, I came across a query that evaluates differently in MariaDB and SQLite.

    SELECT CASE WHEN 1 / 5 * 100.0 = 1 * 100.0 / 5 THEN 1 ELSE 0 END AS Huh
In some engines that evaluates to 1 and in some it evaluates to 0.

In some ( oracle ), it doesn't evaluate at all without a trick to bind it to a table.