Using Algorithmic Compression on DATASET Columns | Teradata Vantage - Using Algorithmic Compression on DATASET Columns - Advanced SQL Engine - Teradata Database

The storage format specification defines a file format that transmits and stores the values along with a common schema. It also defines certain processes for operating on and compressing the storage format data.

You can perform algorithmic compression on DATASET data using the SNAPPY_COMPRESS and SNAPPY_DECOMPRESS routines.

For storage format AVRO:

CREATE TABLE avroCompressTable(
	id INTEGER,
	compressibleAvroFile DATASET STORAGE FORMAT AVRO
		COMPRESS USING SNAPPY_COMPRESS
		DECOMPRESS USING SNAPPY_DECOMPRESS);

CREATE TABLE csvCompressTable(
	id INTEGER,
	compressibleCSVFile DATASET STORAGE FORMAT CSV
		COMPRESS USING SNAPPY_COMPRESS
		DECOMPRESS USING SNAPPY_DECOMPRESS);

For more information about algorithmic compression, see Teradata Vantage™ - Data Types and Literals, B035-1143.