s="variablelist"><dl class="variablelist"><dt><span class="term">
       B-tree, <acronym class="acronym">GiST</acronym> and <acronym class="acronym">SP-GiST</acronym> indexes
      </span></dt><dd><p>
        Short-term share/exclusive page-level locks are used for
        read/write access. Locks are released immediately after each
        index row is fetched or inserted.  These index types provide
        the highest concurrency without deadlock conditions.
       </p></dd><dt><span class="term">
      