15.00 - Calculating the Efficiency of Multi-Value Compression - Teradata Database

Teradata Database Design

prodname
Teradata Database
vrm_release
15.00
category
User Guide
featnum
B035-1094-015K

Calculating the Efficiency of Multi-Value Compression

This topic defines several measures of the efficiency of multi-value compression.

Several factors determine whether it is useful to value compress a column or not. The net capacity usage statistic consolidates these factors and provides an objective measure of how efficient it would be to compress a particular value for a column.