         allowed, please note that in many workloads extreme bloat or
         transaction ID wraparound may occur in much shorter time frames.
        </p><p>
         When this feature is enabled, freed space at the end of a relation
         cannot be released to the operating system, since that could remove
         information needed to detect the <span class="quote">“<span class="quote">snapshot too old</span>”</span>
         condition.  All space allocated to a relation remains associated with
 