17.05 - Creating a Join Index on a Table with Transaction Time - Teradata Database

Teradata Vantage™ - Temporal Table Support

prodname
Advanced SQL Engine
Teradata Database
vrm_release
17.00
17.05
created_date
June 2020
category
Programming Reference
featnum
B035-1182-170K

To create a join index on a table with transaction time, precede the SELECT statement in the join index definition with a CURRENT TRANSACTIONTIME or NONSEQUENCED TRANSACTIONTIME qualifier. For example:

   CREATE JOIN INDEX Policy_Types_JI AS
   CURRENT TRANSACTIONTIME SELECT Policy_Type, Policy_Duration
   FROM Policy_Types;

A join index that is current in the transaction-time dimension must project the transaction-time column in the SELECT statement. Here, the Policy_Duration column is the transaction-time column.