From: Peter Eisentraut <peter_e@gmx.net>
Date: Fri, 9 Jun 2017 23:49:18 +0000 (-0400)
Subject: doc: Improve types in example
X-Git-Tag: REL_10_BETA2~189
X-Git-Url: http://git.postgresql.org/gitweb/?a=commitdiff_plain;h=0332993c4e14f13b211f41535f77aadb305fd354;p=postgresql.git

doc: Improve types in example

Reported-by: Nikolaus Thiel <klt@fsfe.org>
---

diff --git a/doc/src/sgml/xfunc.sgml b/doc/src/sgml/xfunc.sgml
index 10e3c0cef9f..05f4312bf3e 100644
--- a/doc/src/sgml/xfunc.sgml
+++ b/doc/src/sgml/xfunc.sgml
@@ -302,7 +302,7 @@ SELECT add_em(1, 2) AS answer;
      bank account:
 
 <programlisting>
-CREATE FUNCTION tf1 (accountno integer, debit numeric) RETURNS integer AS $$
+CREATE FUNCTION tf1 (accountno integer, debit numeric) RETURNS numeric AS $$
     UPDATE bank
         SET balance = balance - debit
         WHERE accountno = tf1.accountno;
@@ -333,7 +333,7 @@ SELECT tf1(17, 100.0);
      is:
 
 <programlisting>
-CREATE FUNCTION tf1 (accountno integer, debit numeric) RETURNS integer AS $$
+CREATE FUNCTION tf1 (accountno integer, debit numeric) RETURNS numeric AS $$
     UPDATE bank
         SET balance = balance - debit
         WHERE accountno = tf1.accountno;
@@ -345,7 +345,7 @@ $$ LANGUAGE SQL;
      The same thing could be done in one command using <literal>RETURNING</>:
 
 <programlisting>
-CREATE FUNCTION tf1 (accountno integer, debit numeric) RETURNS integer AS $$
+CREATE FUNCTION tf1 (accountno integer, debit numeric) RETURNS numeric AS $$
     UPDATE bank
         SET balance = balance - debit
         WHERE accountno = tf1.accountno