Strengthen warnings about using pg_dump's -i option.

doc/src/sgml/ref/pg_dump.sgml

 <!--
-$PostgreSQL: pgsql/doc/src/sgml/ref/pg_dump.sgml,v 1.99 2008/03/20 17:36:57 tgl Exp $
+$PostgreSQL: pgsql/doc/src/sgml/ref/pg_dump.sgml,v 1.100 2008/03/26 14:32:22 momjian Exp $
 PostgreSQL documentation
 -->
 
@@ -296,19 +296,18 @@ PostgreSQL documentation
       <term><option>--ignore-version</></term>
       <listitem>
        <para>
-        Ignore version mismatch between
+        Ignore incompatible version check between
         <application>pg_dump</application> and the database server.
        </para>
 
        <para>
-        <application>pg_dump</application> can dump from servers running
-        previous releases of <productname>PostgreSQL</>, but very old
-        versions are not supported anymore (currently, those prior to 7.0).
         Dumping from a server newer than <application>pg_dump</application>
-        is likely not to work at all.
-        Use this option if you need to override the version check (and
-        if <application>pg_dump</application> then fails, don't say
-        you weren't warned).
+        is likely fail and is disabled by default.
+        Also, while <application>pg_dump</application> can dump from servers running
+        previous releases of <productname>PostgreSQL</>, some very old
+        versions are not supported (currently, pre-7.0).
+        Use this option if you need to override the version check, but
+        be prepared for <application>pg_dump</application> to fail.
        </para>
       </listitem>
      </varlistentry>

src/bin/pg_dump/pg_backup_db.c

@@ -5,7 +5,7 @@
  *	Implements the basic DB functions used by the archiver.
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_db.c,v 1.77 2007/12/09 19:01:40 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_db.c,v 1.78 2008/03/26 14:32:22 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -72,9 +72,10 @@ _check_database_version(ArchiveHandle *AH, bool ignoreVersion)
 		write_msg(NULL, "server version: %s; %s version: %s\n",
 				  remoteversion_str, progname, PG_VERSION);
 		if (ignoreVersion)
-			write_msg(NULL, "proceeding despite version mismatch\n");
+			write_msg(NULL, "ignoring server version mismatch\n");
 		else
-			die_horribly(AH, NULL, "aborting because of version mismatch  (Use the -i option to proceed anyway.)\n");
+			die_horribly(AH, NULL, "aborting because of server version mismatch\n"
+			"Use the -i option to bypass server version check, but be prepared for failure.\n");
 	}
 }
 

src/bin/pg_dump/pg_dump.c

@@ -12,7 +12,7 @@
  *	by PostgreSQL
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/bin/pg_dump/pg_dump.c,v 1.483 2008/03/20 17:36:57 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/bin/pg_dump/pg_dump.c,v 1.484 2008/03/26 14:32:22 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -745,8 +745,7 @@ help(const char *progname)
 	printf(_("\nGeneral options:\n"));
 	printf(_("  -f, --file=FILENAME      output file name\n"));
 	printf(_("  -F, --format=c|t|p       output file format (custom, tar, plain text)\n"));
-	printf(_("  -i, --ignore-version     proceed even when server version mismatches\n"
-			 "                           pg_dump version\n"));
+	printf(_("  -i, --ignore-version     ignore server version mismatch\n"));
 	printf(_("  -v, --verbose            verbose mode\n"));
 	printf(_("  -Z, --compress=0-9       compression level for compressed formats\n"));
 	printf(_("  --help                   show this help, then exit\n"));

src/bin/pg_dump/pg_dumpall.c

@@ -6,7 +6,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *
- * $PostgreSQL: pgsql/src/bin/pg_dump/pg_dumpall.c,v 1.102 2008/03/20 17:42:51 tgl Exp $
+ * $PostgreSQL: pgsql/src/bin/pg_dump/pg_dumpall.c,v 1.103 2008/03/26 14:32:22 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -488,8 +488,7 @@ help(void)
 
 	printf(_("\nGeneral options:\n"));
 	printf(_("  -f, --file=FILENAME      output file name\n"));
-	printf(_("  -i, --ignore-version     proceed even when server version mismatches\n"
-			 "                           pg_dumpall version\n"));
+	printf(_("  -i, --ignore-version     ignore server version mismatch\n"));
 	printf(_("  --help                   show this help, then exit\n"));
 	printf(_("  --version                output version information, then exit\n"));
 	printf(_("\nOptions controlling the output content:\n"));
@@ -1399,10 +1398,11 @@ connectDatabase(const char *dbname, const char *pghost, const char *pgport,
 		fprintf(stderr, _("server version: %s; %s version: %s\n"),
 				remoteversion_str, progname, PG_VERSION);
 		if (ignoreVersion)
-			fprintf(stderr, _("proceeding despite version mismatch\n"));
+			fprintf(stderr, _("ignoring server version mismatch\n"));
 		else
 		{
-			fprintf(stderr, _("aborting because of version mismatch  (Use the -i option to proceed anyway.)\n"));
+			fprintf(stderr, _("aborting because of server version mismatch\n"
+				"Use the -i option to bypass server version check, but be prepared for failure.\n"));
 			exit(1);
 		}
 	}

src/bin/pg_dump/pg_restore.c

@@ -34,7 +34,7 @@
  *
  *
  * IDENTIFICATION
- *		$PostgreSQL: pgsql/src/bin/pg_dump/pg_restore.c,v 1.86 2008/03/20 17:36:58 tgl Exp $
+ *		$PostgreSQL: pgsql/src/bin/pg_dump/pg_restore.c,v 1.87 2008/03/26 14:32:22 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -378,7 +378,7 @@ usage(const char *progname)
 	printf(_("  -d, --dbname=NAME        connect to database name\n"));
 	printf(_("  -f, --file=FILENAME      output file name\n"));
 	printf(_("  -F, --format=c|t         specify backup file format\n"));
-	printf(_("  -i, --ignore-version     proceed even when server version mismatches\n"));
+	printf(_("  -i, --ignore-version     ignore server version mismatch\n"));
 	printf(_("  -l, --list               print summarized TOC of the archive\n"));
 	printf(_("  -v, --verbose            verbose mode\n"));
 	printf(_("  --help                   show this help, then exit\n"));