initCtx(int length) - Analytics Database - Teradata Vantage

SQL External Routine Programming

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2023-07-11
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iiv1628111441820.ditamap
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dita:id
B035-1147
lifecycle
latest
Product Category
Teradata Vantage™

Allocates and initializes the aggregate intermediate storage area according to the length specified by the length input argument.

An aggregate UDF uses this method in the Phase.AGR_INIT phase of aggregation.

Syntax

initCtx(int length)

Syntax Elements

length
Length the function uses to allocate and initialize the aggregate intermediate storage area.

Exceptions

If length is larger than the size specified in the CLASS AGGREGATE clause of the CREATE FUNCTION or REPLACE FUNCTION statement for the UDF, initCtx() throws an SQLException to indicate that aggregate storage allocation failed because requested size is too big. The SQLException fields are set to the following values.

SQLState Field vendorCode Field
“TS000” 7843