Fastpath Delete and Join Indexes - Teradata Database - Teradata Vantage NewSQL Engine

SQL Data Manipulation Language

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Published
March 2019
Language
English (United States)
Last Update
2019-05-03
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B035-1146
lifecycle
previous
Product Category
Teradata Vantage™
Teradata Database uses fastpath delete processing when the target table has a simple or aggregate join index that is one of the following:
  • Single-table join index.
  • Multitable join index defined with an inner join.
  • Multitable join index where the table being deleted is the outer table of an outer join.
This includes the following statements:
  • A DELETE ALL or unconditional DELETE statement on a table that has a simple or aggregate join index. Teradata Database uses fastpath delete processing for the base table and its join index.
  • A conditional DELETE statement on a table that has a simple or aggregate join index. Teradata Database uses fastpath delete processing only for the join index if the DELETE condition covers the entire index.