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 │
└───────┘

anyHeavy

Introduced in: v1.1

Syntax

anyHeavy(column)

Arguments

column — The column name. String

Returned value

Returns a frequently occurring value. The result is nondeterministic. Any

Examples

Usage example

SELECT anyHeavy(AirlineID) AS res
FROM ontime;

┌───res─┐
│ 19690 │
└───────┘

anyHeavy​

anyHeavy