I have a fulltext query which is usually very fast but may time out when it causes a statistics update since statistics updating is very slow on this database. Usually the query "recovers" to normal speed after the statistics have been updated but I have seen a case where the query always times out which I can only explain with the fact that the statistics are never updated (or so I think).
Unfortunately I cannot reproduce the problem at this point since we switched statistics updating to “Auto Update Statistics Asynchronously” to prevent the timeout from happening in the first place (slightly out of date statistics are not a problem for us).
So my question is
Is there a guarantee that statistics are updated on a query that times out if statistics updating is set to the (default) synchronous statistics updating (Auto Update Statistics Asynchronously = false)?
I found a reference that states otherwise - if that is the case I cannot explain the continuously timing out query case.