The Project Hierarchy performance is poor when custom attributes are added to the view

Document ID : KB000007221
Last Modified Date : 14/02/2018
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Issue:

Steps to reproduce:
1. Go to administration > Studio > Objects > Investment object
2. Create numeric type attributes called Custom_Number1 and Custom_Number2
3. Create a calculated attribute that is a sum of Custom_Number1 and Custom_Number2
4. Create a project called Master and a second one called Sub
4. Go to the Master object and add the Sub project as a child project 
5. Go to the Hierarchy tab of the master project and check the timings on loading the page
6. Add the custom attributes created to the Hierarchy view
7. Try to load the Hierarchy page once again

Expected Results: The Hierarchy tab to be loaded on a reasonable time
Actual Results: The performance on the Hierarchy tab is impacted and is very poor

Environment:
It affects CA PPM 15.1 on MS SQL databases
Cause:

This is caused by DE35058

Resolution:

This issue is fixed within 15.2

Workaround: Do not add custom attributes to project hierarchy list view