<span class="sect2"><a href="rangetypes.html#RANGETYPES-INDEXING">8.17.9. Indexing</a></span></dt><dt><span class="sect2"><a href="rangetypes.html#RANGETYPES-CONSTRAINT">8.17.10. Constraints on Ranges</a></span></dt></dl></div><a id="id-1.5.7.25.2" class="indexterm"></a><a id="id-1.5.7.25.3" class="indexterm"></a><p>
  Range types are data types representing a range of values of some
  element type (called the range's <em class="firstterm">subtype</em>).
  For instance, ranges
  of <code class="type">timest