16.20 - Restrictions on Creating a Hash Index on a Table Concurrent With Dynamic AMP Sample Emulation on That Table - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Data Definition Language Detailed Topics

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Release Date
March 2019
Content Type
Programming Reference
Publication ID
B035-1184-162K
Language
English (United States)

You cannot create a hash index for a table while that table is subject to dynamic AMP sample emulation. To disable dynamic AMP sampling, contact the Teradata Support Center.

To use dynamic AMP sampling on the table with a new hash index, use the following general procedure:

  1. Create the new hash index on the table on the target system.
  2. Extract a fresh dynamic AMP sample from the target system.
  3. Apply the fresh sample to the source system.