17.10 - firstParticipant() - Advanced SQL Engine - Teradata Database

Teradata Vantageā„¢ - SQL External Routine Programming

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Programming Reference
Publication ID
B035-1147-171K
Language
English (United States)

Provides a way to implement a table function that only needs one copy to participate and does not care which AMP the copy runs on.

This method returns true if it is the first time being called and returns false otherwise.

The copy of the table function in which a call to Tbl.firstParticipant() returns true is the copy of the function that participates in the current transaction and request.