From adb77640304a375883eaaec9eb9b21036c2be0bd Mon Sep 17 00:00:00 2001
From: Peter Eisentraut <peter_e@gmx.net>
Date: Fri, 22 Jan 2010 15:45:15 +0000
Subject: PL/Python DO handler

Also cleaned up some redundancies between the primary error messages and the
error context in PL/Python.

Hannu Valtonen
---
 doc/src/sgml/plpython.sgml | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

(limited to 'doc/src')

diff --git a/doc/src/sgml/plpython.sgml b/doc/src/sgml/plpython.sgml
index a623f3509bd..384b7aecc48 100644
--- a/doc/src/sgml/plpython.sgml
+++ b/doc/src/sgml/plpython.sgml
@@ -1,4 +1,4 @@
-<!-- $PostgreSQL: pgsql/doc/src/sgml/plpython.sgml,v 1.43 2009/12/19 22:23:21 petere Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/plpython.sgml,v 1.44 2010/01/22 15:45:15 petere Exp $ -->
 
 <chapter id="plpython">
  <title>PL/Python - Python Procedural Language</title>
@@ -551,6 +551,24 @@ $$ LANGUAGE plpythonu;
   </para>
  </sect1>
 
+ <sect1 id="plpython-do">
+  <title>Anonymous Code Blocks</title>
+
+  <para>
+   PL/Python also supports anonymous code blocks called with the
+   <xref linkend="sql-do"> statement:
+
+<programlisting>
+DO $$
+    # PL/Python code
+$$ LANGUAGE plpythonu;
+</programlisting>
+
+   An anonymous code block receives no arguments, and whatever value it
+   might return is discarded.  Otherwise it behaves just like a function.
+  </para>
+ </sect1>
+
  <sect1 id="plpython-trigger">
   <title>Trigger Functions</title>
 
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