doc: Mention identity column feature in section on serial

Reported-by: Basil Bourque <basil.bourque@pobox.com>
8 years ago · adce8912e6
parent d34a74dd06
commit adce8912e6
1 changed files with 8 additions and 0 deletions
--- a/doc/src/sgml/datatype.sgml
+++ b/doc/src/sgml/datatype.sgml
@ -837,6 +837,14 @@ FROM generate_series(-3.5, 3.5, 1) as x;
     <secondary>and serial type</secondary>
    </indexterm>

+    <note>
+     <para>
+      This section describes a PostgreSQL-specific way to create an
+      autoincrementing column.  Another way is to use the SQL-standard
+      identity column feature, described at <xref linkend="sql-createtable">.
+     </para>
+    </note>
+
    <para>
     The data types <type>smallserial</type>, <type>serial</type> and
     <type>bigserial</type> are not true types, but merely