TD_IDFFT2 Output - Teradata Vantage

Database Unbounded Array Framework Time Series Functions

Deployment
VantageCloud
VantageCore
Edition
VMware
Enterprise
IntelliFlex
Product
Teradata Vantage
Release Number
17.20
Published
June 2022
ft:locale
en-US
ft:lastEdition
2025-04-04
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ncd1634149624743.ditamap
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ruu1634160136230.ditaval
dita:id
ncd1634149624743

This function returns a primary result set. No other auxiliary layer is returned by this function. This function returns a complex number. If the input was a univariate series, then COMPLEX is returned. If the input was multivariate, then MULTIVAR_COMPLEX is returned.

In the following table, dominant_payload_name depends on its input source payload content type. If the input source payload content is COMPLEX or MULTIVAR_COMPLEX then this is the payload name associated the complex components in rectangular form. If input source payload content is AMPL_PHASE or MULTIVAR_AMPL_PHASE then this is the payload name associated with the complex component in polar form.

RETURNS TABLE Schema

Name Data Type Description
derived-matrix-identifier Varies The resultant series identifier inherited from the MATRIX_ID.
ROW_I INTEGER Index of row axis.
COLUMN_I INTEGER Index of column axis.
REAL_dominant_payload_name REAL Real part of complex Fourier coefficient.
IMAG_dominant_payload_name REAL Imaginary part of complex Fourier coefficient.