17.05 - DELETE Statement in the Last Request - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Manipulation Language

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
Published
January 2021
Language
English (United States)
Last Update
2021-01-22
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If a DELETE statement is in the last request of a transaction and the following conditions are met, the delete is optimized to delete entire row partitions:
  • The ANSI mode and Teradata mode conditions for fastpath delete processing are satisfied, with the exception that a deferred partition DELETE can be followed by another statement that references the same target table.
  • The target table is not defined with referential integrity.

This avoids transient journaling of each row deleted from those row partitions.