<entry><literal>[10,15)</literal></entry>
</row>
- <row>
- <entry> <literal>!?</literal> </entry>
- <entry>Is empty?</entry>
- <entry><literal>'empty'::int4range !?</literal></entry>
- <entry><literal>t</literal></entry>
- </row>
-
- <row>
- <entry> <literal>?</literal> </entry>
- <entry>Is non-empty?</entry>
- <entry><literal>numrange(1.0,2.0)?</literal></entry>
- <entry><literal>t</literal></entry>
- </row>
</tbody>
</tgroup>
</table>
<primary>upper</primary>
</indexterm>
<indexterm>
- <primary>empty</primary>
- </indexterm>
- <indexterm>
- <primary>non_empty</primary>
+ <primary>isempty</primary>
</indexterm>
<indexterm>
<primary>lower_inc</primary>
<row>
<entry>
<literal>
- <function>empty</function>(<type>anyrange</type>)
+ <function>isempty</function>(<type>anyrange</type>)
</literal>
</entry>
<entry><type>anyrange</type></entry>
<entry>is the range empty?</entry>
- <entry><literal>empty(numrange(1.1,2.2))</literal></entry>
+ <entry><literal>isempty(numrange(1.1,2.2))</literal></entry>
<entry><literal>false</literal></entry>
</row>
- <row>
- <entry>
- <literal>
- <function>non_empty</function>(<type>anyrange</type>)
- </literal>
- </entry>
- <entry><type>anyrange</type></entry>
- <entry>is the range non-empty?</entry>
- <entry><literal>non_empty(numrange(1.1,2.2))</literal></entry>
- <entry><literal>true</literal></entry>
- </row>
<row>
<entry>
<literal>