Pivot Report Options

You can extend search results to full hierarchy that will include parent and child issues.
Also you can extend Work Ratio, time estimates and story points with separate option.

Parent Issues

If checked, filter results will be extended with parent issues

Related issues

All estimates will be based only on found issues
Use this option if you want to see only issues and estimates from the filter

Issue Hierarchy will show only issues from filter, but estimates will include info from all related issues
Use this option to see filter results with full estimates

Issue Hierarchy, Workload and Individual estimates will include info from all related issues
Use this option to extend filter results to the fullest