How can I find out all the sites where the user is a primary site collection administrator or a secondary site collection administrator.
We have around 200+ site collections and growing and hence looking to avoid a loop. For membership we are currently using "contentclass:sts_site" with SearchServiceApplicationProxy.
I guess I should have added more details to the above - Since I already have the code for the Search Application Proxy utilizing the object model, preferably I was looking towards a solution where I could still utilize Search Application Proxy to fetch all details in one go.