Grouping for datetime columns should show values according to column display option

1

Hi,

I have created a report, in which i am only interested in showing the Year-portion of a datetime-field.

This works good until i try to group for the shown values in there. The groups are not built by the years in this case, but still on the entire value.

It would make more sense to group according to the display option the grouped column is set to. Especially because i dont know how to do calculated columns in SOLR reports like i used to in SQL-reports. ;)

I have attached a screenshot to make clear what i mean.