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

SQL Data Manipulation Language

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Published
July 2021
Language
English (United States)
Last Update
2021-07-27
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B035-1146
lifecycle
previous
Product Category
Teradata Vantageā„¢
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.