From 69f69808c5c4185e729f489720e6c4c04efdd85b Mon Sep 17 00:00:00 2001
From: Tom Lane
Date: Thu, 2 Mar 2006 21:49:19 +0000
Subject: Fix ancient error in large objects usage example: overwrite()
 subroutine was opening with INV_READ flag and then writing.  Prior to 8.1 the
 backend did not reject this, but now it does.

---
 doc/src/sgml/lobj.sgml | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

(limited to 'doc/src')

diff --git a/doc/src/sgml/lobj.sgml b/doc/src/sgml/lobj.sgml
index 98516082c97..ea9006e3746 100644
--- a/doc/src/sgml/lobj.sgml
+++ b/doc/src/sgml/lobj.sgml
@@ -1,5 +1,5 @@
 <!--
-$PostgreSQL: pgsql/doc/src/sgml/lobj.sgml,v 1.37 2005/06/13 02:26:46 tgl Exp $
+$PostgreSQL: pgsql/doc/src/sgml/lobj.sgml,v 1.37.2.1 2006/03/02 21:49:19 tgl Exp $
 -->
 
  <chapter id="largeObjects">
@@ -527,7 +527,7 @@ overwrite(PGconn *conn, Oid lobjId, int start, int len)
     int         nwritten;
     int         i;
 
-    lobj_fd = lo_open(conn, lobjId, INV_READ);
+    lobj_fd = lo_open(conn, lobjId, INV_WRITE);
     if (lobj_fd &lt; 0)
     {
         fprintf(stderr, &quot;can't open large object %d\n&quot;,
@@ -553,7 +553,8 @@ overwrite(PGconn *conn, Oid lobjId, int start, int len)
 }
 
 /*
- * exportFile *    export large object &quot;lobjOid&quot; to file &quot;out_filename&quot;
+ * exportFile
+ *    export large object &quot;lobjOid&quot; to file &quot;out_filename&quot;
  *
  */
 void
@@ -566,7 +567,7 @@ exportFile(PGconn *conn, Oid lobjId, char *filename)
     int         fd;
 
     /*
-     * create an inversion &quot;object&quot;
+     * open the large object
      */
     lobj_fd = lo_open(conn, lobjId, INV_READ);
     if (lobj_fd &lt; 0)
@@ -586,7 +587,7 @@ exportFile(PGconn *conn, Oid lobjId, char *filename)
     }
 
     /*
-     * read in from the Unix file and write to the inversion file
+     * read in from the inversion file and write to the Unix file
      */
     while ((nbytes = lo_read(conn, lobj_fd, buf, BUFSIZE)) &gt; 0)
     {
-- 
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