17.10 - allocCtx(java.lang.Object tblCtxObj) - 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)

This method initializes the table function context for the first time with the serialized size of tblCtxObj.

A UDF can use the table function context as a scratchpad to retain data between iterations of a local table function copy.

Syntax

allocCtx(java.lang.Object tblCtxObj)

Syntax Elements

tblCtxObj
If tblCtxObj has object type fields, the UDF must initialize those fields to non-null values before calling allocCtx(). If tblCtxObj has array type fields, the UDF must initialize the array itself and each element of the array to a non-null value before calling allocCtx().
The maximum size of tblCtxObj is 64 KB.