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2459227 - SAP HCI function is_group_changed fails validation - SAP Cloud Platform Integration for data services

Symptom

The function is_group_changed(<expression>), which allows one or more valid input expressions separated by commas
as documented here  http://help-legacy.sap.com/saphelpiis_hci_ds/hci10_help_sap_en/index.html#5762432e6d6d1014b3fc9283b0e91070.html
only seems to allow a single column as an input parameter in HCI DS.
If more than one column is selected an error is shown:

Severity       Message
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ERROR          Column [TEST]: Calling function <is_group_changed> with <2> parameters, but <1> are expected. Please fix the call by passing the correct number of parameters.


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Environment

SAP Cloud Platform Integration for data services

Product

SAP HANA Cloud Integration 1.0 for data services

Keywords

KBA , LOD-HCI-DS , HANA Cloud Integration for Data Services , Problem

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