What happens with statistics when reverting to a database snapshot Lets say I have a database FOO for which I created a snapshot (named FOO_snap). Now I'll run thousands of queries on this DB. After that I will revert DB to FOO_snap. Will I lose all of the statistics which were created for these thousand of queries?
Yes you would:


  The original source database is overwritten by the reverted database, so any updates to the database since the snapshot's creation are lost.


and


  The metadata of a reverted database is the same as the metadata at the time of the snapshot.


Quotes from Revert a Database to a Database Snapshot in the MSDN Library.