Ayoob AI

GROUP BY

1 article on GROUP BY from Ayoob AI, the full code AI automation agency based in Newcastle upon Tyne.

Predicting GPU Hash Map Collisions with the Chao1 Estimator

GPU databases crash when GROUP BY cardinality is guessed wrong. The Chao1 estimator predicts it, used in our Newcastle-built analytics engine.

17 min read·2026-04-14

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