percentiletdigestmv

This section contains reference documentation for the PERCENTILETDIGESTMV function.

Returns the Nth percentile of the group using T-digest algorithm. An optional compression_factor can be specified to control the accuracy with a tradeoff in memory usage (i.e. higher compression_factor gives better accuracy but takes more memory). The default compression_factor is 100.
Signature
PERCENTILETDIGESTMV(colName, percentile)
PERCENTILETDIGESTMV(colName, percentile, compression_factor)
Usage Examples
These examples are based on the Hybrid Quick Start.
select PERCENTILETDIGESTMV(DivLongestGTimes, 50, 1000) AS value
from airlineStats 
where arraylength(DivLongestGTimes) > 1
value
10
select PERCENTILETDIGESTMV(DivLongestGTimes, 90) AS value
from airlineStats 
where arraylength(DivLongestGTimes) > 1
value
44
select PERCENTILETDIGESTMV(DivLongestGTimes, 99.9) AS value
from airlineStats 
where arraylength(DivLongestGTimes) > 1
value
108

value
10

value
44

value
108

percentiletdigest

quarter

Last modified 1mo ago