presto-main/src/main/java/io/prestosql/operator/scalar/DateTimeFunctions.java/DateTimeFunctions/yearOfWeekFromTimestampWithTimeZone
class DateTimeFunctions:    @Description("year of the ISO week of the given timestamp")
    @ScalarFunction(value = "year_of_week", alias = "yow")
    @SqlType(StandardTypes.BIGINT)
    public static long yearOfWeekFromTimestampWithTimeZone(@SqlType(StandardTypes.TIMESTAMP_WITH_TIME_ZONE) long timestampWithTimeZone)
    {
        return unpackChronology(timestampWithTimeZone).weekyear().get(unpackMillisUtc(timestampWithTimeZone));
    }