16.20 - C Scalar Function for Compressing CLOB Data - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL External Routine Programming

Product
Advanced SQL Engine
Teradata Database
Release Number
16.20
Release Date
April 2020
Content Type
Programming Reference
Publication ID
B035-1147-162K
Language
English (United States)

This example shows a compression algorithm which removes all extra bytes of Unicode text and returns an error if the extra byte is not 0.

You must thoroughly test the UDFs you develop for algorithmic compression. If the compression or decompression algorithm fails, compressed data may not be recoverable, or may be corrupted.