// This change has session scope. All operations after this query
// will now use UTC for TIMESTAMPs. Other sessions will not see the change.
// If you need to reconnect the connection, you need to run this again.
conn.execute("SET @time_zone = 'UTC'", result);
I think the @ should be removed as it means user defined variable.
Quote
I think the @ should be removed as it means user defined variable.