ALTER TABLE (Map and Colocation Form) | VantageCloud Lake - ALTER TABLE (Map and Colocation Form) - Teradata Vantage

Moves a table from one map to another. You can also change the colocation name for a sparse map.

Tables that have the same sparse map and colocation name can be joined using the same primary index or primary AMP index columns without redistributing or duplicating rows. For example, you can colocate two tables, then join the tables on the primary index or primary AMP index columns.

You can also use SQL procedures provided in the TDMaps system database to move tables from one map to another. See A Simple Process for Changing the Map for a Table.

Required Privileges

See the CREATE USER DEFAULT MAP option, CREATE DATABASE DEFAULT MAP option, or CREATE PROFILE DEFAULT MAP option and GRANT MAP.