xref" href="biblio.html#STON87A">[ston87a]</a>.  The rationale and
   architecture of the storage manager were detailed in <a class="xref" href="biblio.html#STON87B">[ston87b]</a>.
  </p><p>
   <span class="productname">POSTGRES</span> has undergone several major
   releases since then.  The first <span class="quote">“<span class="quote">demoware</span>”</span> system
   became operational in 1987 and was shown at the 1988
   <acronym class="acronym">ACM-SIGMOD</acronym> Conference.  Version 1, describe