release notes: update link to 9.3 PL/pgSQL constraint error info

Backpatch to 9.3.

Pavel Stehule

diff --git a/doc/src/sgml/release-9.3.sgml b/doc/src/sgml/release-9.3.sgml
index ce69171c267f54b213d84e8347201088ca84cb88..fc9d9db93fd0d614175b62a4bb13dd1c5811f62c 100644 (file)
--- a/doc/src/sgml/release-9.3.sgml
+++ b/doc/src/sgml/release-9.3.sgml
@@ -1213,7 +1213,7 @@
       <listitem>
        <para>
         Allow PL/pgSQL to access <link
-        linkend="libpq-pqresulterrorfield">constraint violation
+        linkend="plpgsql-exception-diagnostics">constraint violation
         details</link> as separate fields (Pavel Stehule)
        </para>
       </listitem>