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anyHeavy
Selects a frequently occurring value using the heavy hitters algorithm. If there is a value that occurs more than in half the cases in each of the query’s execution threads, this value is returned. Normally, the result is nondeterministic.
anyHeavy(column)
Arguments
column
– The column name.
Example
Take the OnTime data set and select any frequently occurring value in the AirlineID
column.
SELECT anyHeavy(AirlineID) AS res
FROM ontime
┌───res─┐
│ 19690 │
└───────┘