DISTINCTCOUNTHLLMV

Returns an approximate distinct count using HyperLogLog in a group.

Signature

DISTINCTCOUNTHLLMV(colName)

Usage Examples

These examples are based on the Hybrid Quick Start.

select DISTINCTCOUNTHLLMV(DivLongestGTimes) AS value
from airlineStats 
where arraylength(DivLongestGTimes) > 1