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hazaskull | 2 years ago

Was unable to edit my previous. It does use vectorization: https://www.cockroachlabs.com/docs/stable/vectorized-executi...

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refset|2 years ago

Thanks for sharing that - TIL! These blog posts elaborate with more detail:

https://www.cockroachlabs.com/blog/vectorized-hash-joiner/

https://www.cockroachlabs.com/blog/vectorizing-the-merge-joi...

...it seems the distinction here is that the vectorization is only present in the execution layer and not the storage layer also. I would guess that from a storage perspective, even with column families in play, everything is being streamed out of sorted a LSM engine regardless. So there isn't additionally some highly-tuned buffer pool serving up batches of compressed column files etc.