From 9b4bd35aa1f185b3ad5b2e3d51a524f5bb77f577 Mon Sep 17 00:00:00 2001
From: Alvaro Herrera <alvherre@alvh.no-ip.org>
Date: Thu, 27 Feb 2014 11:41:43 -0300
Subject: [PATCH] doc: bgw_main takes a Datum argument, not void *.

Per report from James Harper.
---
 doc/src/sgml/bgworker.sgml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/src/sgml/bgworker.sgml b/doc/src/sgml/bgworker.sgml
index 7ffeca5321a..f66cf7f20e8 100644
--- a/doc/src/sgml/bgworker.sgml
+++ b/doc/src/sgml/bgworker.sgml
@@ -37,7 +37,7 @@
   from its <function>_PG_init()</>.
   The structure <structname>BackgroundWorker</structname> is defined thus:
 <programlisting>
-typedef void (*bgworker_main_type)(void *main_arg);
+typedef void (*bgworker_main_type)(Datum main_arg);
 typedef struct BackgroundWorker
 {
     char        bgw_name[BGW_MAXLEN];
@@ -94,7 +94,7 @@ typedef struct BackgroundWorker
   <para>
    <structfield>bgw_main</structfield> is a pointer to the function to run when
    the process is started.  This function must take a single argument of type
-   <type>void *</> and return <type>void</>.
+   <type>Datum</> and return <type>void</>.
    <structfield>bgw_main_arg</structfield> will be passed to it as its only
    argument.  Note that the global variable <literal>MyBgworkerEntry</literal>
    points to a copy of the <structname>BackgroundWorker</structname> structure