tdr.GetHashByDef Function | R Table Operators | Teradata Vantage - 17.10 - tdr.GetHashByDef - 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)

Returns the column names in the HASH BY clause for a specified input stream.

Syntax

tdr.GetHashByDef(  streamno  )

Syntax Elements

streamno
Parameter type: integer

The input stream number.

Example: Get the Columns in the HASH BY Clause

Consider the following HASH BY clause for input stream 0:

HASH BY col1, col3

The following statement retrieves the columns in the HASH BY clause and prints them.

print( tdr.GetHashByDef( 0));

The output of the print statement is as follows:

$Num_Columns
[1] 2

$ColumnNames
[1] "col1" "col3"