SELECT CURRENT_TIMESTAMP;
SELECT now();
SELECT TIMESTAMP 'now'; -- incorrect for use with DEFAULT
<!--
-$PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.237 2005/01/28 23:12:59 tgl Exp $
+$PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.238 2005/02/11 04:31:54 momjian Exp $
PostgreSQL documentation
-->
<programlisting>
SELECT CURRENT_TIMESTAMP;
SELECT now();
-SELECT TIMESTAMP 'now';
+SELECT TIMESTAMP 'now'; -- incorrect for use with DEFAULT
</programlisting>
</para>