Click-V: A RISC-V emulator built with ClickHouse SQL

64 pointsposted 8 months ago
by calcifer
(github.com)

9 Comments

hobs

8 months ago

This is amazing, and also psychic damage inducing - I thought I had seen some terrifying SQL things and then I see "ClickOS UDF"

blyry

8 months ago

DUDE I was daydreaming about this the other day, but with postgres. Can I ask why you chose clickhouse? My idea was that every op could be an insert, and then the resulting state would be a transaction and logged? So you'd get basically logged cpu state? Idk cool stuff I'm pumped to dive in tonight.

meepmorp

8 months ago

based on this line from the readme, the answer to your question is likely "because":

> This emulator makes ClickHouse truly Turing complete. We are one step closer to running ClickHouse in ClickHouse.

blyry

8 months ago

lol for sure, I'm genuinely curious though, like maybe op is a clickhouse dev? Or maybe they had the cursed idea and decided clickhouse was the best fit for various reasons?

jitl

8 months ago

Postgres does not have incremental view maintenance for its materialized views like clickhouse does. This means the implementation strategy would need to be quite different. Perhaps triggers is enough and of course if you use functions then sure, you can make an emulator there too.

blyry

8 months ago

okay did like 10 seconds of introspection and OP probably isn't the repo author, and the repo author definitely looks like they work at clickhouse

cptnapalm

8 months ago

"Because" is always the most fun reason.

caust1c

8 months ago

Spencer is an engineer at ClickHouse, so it makes sense.