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ClickHouse/ClickHouse Blog/How we scaled raw GROUP BY to 100 B+ rows in under a second

How we scaled raw GROUP BY to 100 B+ rows in under a second

$npx -y @buildinternet/releases show rel_7sydqShZrnJR72RcmVtoO

ClickHouse Cloud now scales analytical queries with parallel replicas, fanning a single query across thousands of cores for terabyte-per-second throughput. This post dives into the internals and lets you see and feel the speed.

Fetched April 14, 2026