Query with no tracking

gistfile1.cs

Guid[] logEventIds;
using (IDbContext ctx = repository.GetContext())
{
    // find all session events that have changed since we last processed
    logEventIds = ctx.Set<LogEvent>().AsNoTracking()
                     .OrderBy(e => e.LastOccurrence.Date)
                     .Select(e => e.Id)
                     .ToArray();
}