I am trying to get performance labels from the ad group ad asset view but it only returns results for app campaigns. I would need it for display and search. I saw other people having the same issue but the support person claimed that it should work for display campaigns too.
'SELECT ad_group_ad_asset_view.ad_group_ad, ' +\
'ad_group_ad_asset_view.asset, ' +\
'ad_group_ad_asset_view.performance_label ' +\
'FROM ad_group_ad_asset_view ')