Compresses any supported ALC data type or predefined type data using the Lempel-Ziv algorithm.
ANSI Compliance
This statement is a Teradata extension to the ANSI SQL:2011 standard.
Syntax
[TD_SYSFNLIB.] TD_LZ_COMPRESS ( expression )
Syntax Elements
- TD_SYSFNLIB.
- Name of the database where the function is located.
- expression
- Any supported ALC data type when using the function as the compression routine for ALC on a column.
- Any supported ALC data types and all predefined data types and Distinct UDTs when calling the function.
This function takes no arguments when used as part of the COMPRESS USING or DECOMPRESS USING phrases.