pg_restore: Add -N option to exclude schemas

This is similar to the -N option in pg_dump, except that it doesn't take
a pattern, just like the existing -n option in pg_restore.

From: Michael Banck <michael.banck@credativ.de>

doc/src/sgml/ref/pg_restore.sgml

@@ -302,7 +302,7 @@
      </varlistentry>
 
      <varlistentry>
-      <term><option>-n <replaceable class="parameter">namespace</replaceable></option></term>
+      <term><option>-n <replaceable class="parameter">schema</replaceable></option></term>
       <term><option>--schema=<replaceable class="parameter">schema</replaceable></option></term>
       <listitem>
        <para>
@@ -314,6 +314,22 @@
       </listitem>
      </varlistentry>
 
+     <varlistentry>
+      <term><option>-N <replaceable class="parameter">schema</replaceable></option></term>
+      <term><option>--exclude-schema=<replaceable class="parameter">schema</replaceable></option></term>
+      <listitem>
+       <para>
+        Do not restore objects that are in the named schema.  Multiple schemas
+        to be excluded may be specified with multiple <option>-N</> switches.
+       </para>
+
+       <para>
+        When both <option>-n</> and <option>-N</> are given for the same
+        schema name, the <option>-N</> switch wins and the schema is excluded.
+       </para>
+      </listitem>
+     </varlistentry>
+
      <varlistentry>
       <term><option>-O</option></term>
       <term><option>--no-owner</option></term>

src/bin/pg_dump/pg_backup.h

@@ -99,6 +99,7 @@ typedef struct _restoreOptions
 	SimpleStringList indexNames;
 	SimpleStringList functionNames;
 	SimpleStringList schemaNames;
+	SimpleStringList schemaExcludeNames;
 	SimpleStringList triggerNames;
 	SimpleStringList tableNames;
 

src/bin/pg_dump/pg_backup_archiver.c

@@ -2751,6 +2751,11 @@ _tocEntryRequired(TocEntry *te, teSection curSection, RestoreOptions *ropt)
 			return 0;
 	}
 
+	if (ropt->schemaExcludeNames.head != NULL
+		&& te->namespace
+		&& simple_string_list_member(&ropt->schemaExcludeNames, te->namespace))
+		return 0;
+
 	if (ropt->selTypes)
 	{
 		if (strcmp(te->desc, "TABLE") == 0 ||

src/bin/pg_dump/pg_restore.c

@@ -85,6 +85,7 @@ main(int argc, char **argv)
 		{"data-only", 0, NULL, 'a'},
 		{"dbname", 1, NULL, 'd'},
 		{"exit-on-error", 0, NULL, 'e'},
+		{"exclude-schema", 1, NULL, 'N'},
 		{"file", 1, NULL, 'f'},
 		{"format", 1, NULL, 'F'},
 		{"function", 1, NULL, 'P'},
@@ -148,7 +149,7 @@ main(int argc, char **argv)
 		}
 	}
 
-	while ((c = getopt_long(argc, argv, "acCd:ef:F:h:I:j:lL:n:Op:P:RsS:t:T:U:vwWx1",
+	while ((c = getopt_long(argc, argv, "acCd:ef:F:h:I:j:lL:n:N:Op:P:RsS:t:T:U:vwWx1",
 							cmdopts, NULL)) != -1)
 	{
 		switch (c)
@@ -196,6 +197,10 @@ main(int argc, char **argv)
 				simple_string_list_append(&opts->schemaNames, optarg);
 				break;
 
+			case 'N':			/* Do not dump data for this schema */
+				simple_string_list_append(&opts->schemaExcludeNames, optarg);
+				break;
+
 			case 'O':
 				opts->noOwner = 1;
 				break;
@@ -456,6 +461,7 @@ usage(const char *progname)
 	printf(_("  -L, --use-list=FILENAME      use table of contents from this file for\n"
 			 "                               selecting/ordering output\n"));
 	printf(_("  -n, --schema=NAME            restore only objects in this schema\n"));
+	printf(_("  -N, --exclude-schema=NAME    do not restore objects in this schema\n"));
 	printf(_("  -O, --no-owner               skip restoration of object ownership\n"));
 	printf(_("  -P, --function=NAME(args)    restore named function\n"));
 	printf(_("  -s, --schema-only            restore only the schema, no data\n"));