Structure Formula: FixVersion of Child issues with earliest release date

[Don Utley]

I'm trying to return the FixVersion of child issues with the earliest release date on a parent issue in structure. I've searched around and came up with the below:

ARRAY#children{fixversion.FILTER($.releasedate = MIN#children{fixversion.releasedate})}

It seems like the "ARRAY" function isn't working because when I try 

ARRAY#children{fixversion.name}

nothing is returned.  I'm able to return the earliest release date from the child issues with this: 

MIN#children{fixversion.releasedate}

[Don Utley]

Figured it out:

values#children{fixversion}.filter($.releasedate = MIN#children{fixversion.releasedate})