In-Database Approximate Median and Percentile Functions
Soniya Shah, Information Developer
June 8, 2017
This blog post was authored by Ginger Ni. Median and percentile functions are commonly used data statistic functions. They are also used in other sophisticated data analysis algorithms, such as the robust z-Score normalization function. Vertica has exact MEDIAN and PERCENTILE_CONT functions, but these functions do not scale well for extremely large data sets, because...