17.05 - NoPI Tables and SELECT Statements - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Manipulation Language

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
Release Date
January 2021
Content Type
Programming Reference
Publication ID
B035-1146-175K
Language
English (United States)
Because NoPI tables do not have a primary index, single-AMP primary index access is not available. The table must be accessed using a full-table scan, unless one on the following conditions is true:
  • Table has a secondary or join index that the Optimizer can use for the access plan, or
  • Column or row partition elimination can be applied for a column-partitioned table.

Secondary and join index access paths work the same for NoPI tables as for primary index tables.