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Hi, author here. Thanks for the feedback. At the table level, yes, it is an array of groups. The important part is that SIMD compares those small control bytes, not 8 complete keys…

Vertically on a single machine, the two are quite similar, both fan work out across all CPU cores. The different is on scaling out. ClickHouse scales by making you describe the clu…

The article could be a bit misleading, as it focuses on the act of one goroutine signaling another. That’s why it emphasizes 'for its signaling to work.' > "In theory, a condition …