17.00 - (column_name) - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Definition Language Syntax and Examples

Advanced SQL Engine
Teradata Database
Release Number
September 2020
Content Type
Programming Reference
Publication ID
English (United States)

Group the values from the specified column set of 1 or more columns into the same partition of a column-partitioned table. You can specify a single column in a partition.

This option is only valid for column-partitioned tables.

You should consider grouping columns into a column partition when either of the following conditions occur:
  • The columns are frequently accessed together by queries.
  • The columns are infrequently accessed or autocompression on the individual columns or subsets of columns is not effective.

You cannot specify a column to be in more than one partition.

If you do not specify a column grouping for a COLUMN specification in the PARTITION BY clause, Vantage defines a column partition for each individual column and column group specified in the column list for table_name.