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
Release Date
January 2021
Content Type
Programming Reference
Publication ID
B035-1146-175K
Language
English (United States)
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.