Severalnines Blog

ClickHouse Schema Design and Data Modeling

July 17, 2026 Agus Syafaat
Sometimes, we see ClickHouse queries that should normally complete in milliseconds take several seconds to finish or worse, time out entirely. When that happens, there is a good chance that the schema is the real culprit. The problem is often not the query itself, nor is it a hardware bottleneck....

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