# Slow...
#slice_query = Query().get('slice').filter_by('user.user_hrn', 'contains', user_hrn).select('slice_hrn')
slice_query = Query().get('user').filter_by('user_hrn', '==', '$user_hrn').select('user_hrn', 'slice.slice_hrn')
# Slow...
#slice_query = Query().get('slice').filter_by('user.user_hrn', 'contains', user_hrn).select('slice_hrn')
slice_query = Query().get('user').filter_by('user_hrn', '==', '$user_hrn').select('user_hrn', 'slice.slice_hrn')