<!--
-$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_sequence.sgml,v 1.21 2001/11/17 22:20:34 tgl Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_sequence.sgml,v 1.22 2001/11/28 15:33:48 tgl Exp $
Postgres documentation
-->
<title>
Notes
</title>
+
<para>
Use <command>DROP SEQUENCE</command> to remove a sequence.
</para>
+
+ <para>
+ Sequences are based on <type>bigint</> arithmetic, so the range cannot
+ exceed the range of an eight-byte integer
+ (-9223372036854775808 to 9223372036854775807). On some older platforms,
+ there may be no compiler support for eight-byte integers, in which case
+ sequences use regular <type>integer</> arithmetic (range
+ -2147483648 to +2147483647).
+ </para>
+
<para>
When <replaceable class="parameter">cache</replaceable> is greater than
one, each backend uses its own cache to store preallocated numbers.