Fix pg_dumpall to do the right thing with "postgres" database, per

Dave Page.  Also, cause it to emit rather than ignore any ACL and
datconfig options that may be set for these two databases.

Author: tglsfdc

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 1.60 2005/06/21 04:02:32 tgl Exp $
+ * $PostgreSQL: pgsql/src/bin/pg_dump/pg_dumpall.c,v 1.61 2005/06/21 15:22:18 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -303,7 +303,7 @@ main(int argc, char *argv[])
 	if (verbose)
 		dumpTimestamp("Started on");
 
-	printf("\\connect \"postgres\"\n\n");
+	printf("\\connect postgres\n\n");
 
 	if (!data_only)
 	{
@@ -661,40 +661,43 @@ dumpCreateDB(PGconn *conn)
 		char	   *dbtablespace = PQgetvalue(res, i, 5);
 		char	   *fdbname;
 
-		if (strcmp(dbname, "template1") == 0)
-			continue;
-
 		buf = createPQExpBuffer();
-
-		/* needed for buildACLCommands() */
 		fdbname = strdup(fmtId(dbname));
 
-		if (output_clean)
-			appendPQExpBuffer(buf, "DROP DATABASE %s;\n", fdbname);
-
-		appendPQExpBuffer(buf, "CREATE DATABASE %s", fdbname);
+		/*
+		 * Skip the CREATE DATABASE commands for "template1" and "postgres",
+		 * since they are presumably already there in the destination cluster.
+		 * We do want to emit their ACLs and config options if any, however.
+		 */
+		if (strcmp(dbname, "template1") != 0 &&
+			strcmp(dbname, "postgres") != 0)
+		{
+			if (output_clean)
+				appendPQExpBuffer(buf, "DROP DATABASE %s;\n", fdbname);
 
-		appendPQExpBuffer(buf, " WITH TEMPLATE = template0");
+			appendPQExpBuffer(buf, "CREATE DATABASE %s", fdbname);
 
-		if (strlen(dbowner) != 0)
-			appendPQExpBuffer(buf, " OWNER = %s",
-							  fmtId(dbowner));
+			appendPQExpBuffer(buf, " WITH TEMPLATE = template0");
 
-		appendPQExpBuffer(buf, " ENCODING = ");
-		appendStringLiteral(buf, dbencoding, true);
+			if (strlen(dbowner) != 0)
+				appendPQExpBuffer(buf, " OWNER = %s", fmtId(dbowner));
 
-		/* Output tablespace if it isn't default */
-		if (strcmp(dbtablespace, "pg_default") != 0)
-			appendPQExpBuffer(buf, " TABLESPACE = %s",
-							  fmtId(dbtablespace));
+			appendPQExpBuffer(buf, " ENCODING = ");
+			appendStringLiteral(buf, dbencoding, true);
 
-		appendPQExpBuffer(buf, ";\n");
+			/* Output tablespace if it isn't default */
+			if (strcmp(dbtablespace, "pg_default") != 0)
+				appendPQExpBuffer(buf, " TABLESPACE = %s",
+								  fmtId(dbtablespace));
 
-		if (strcmp(dbistemplate, "t") == 0)
-		{
-			appendPQExpBuffer(buf, "UPDATE pg_database SET datistemplate = 't' WHERE datname = ");
-			appendStringLiteral(buf, dbname, true);
 			appendPQExpBuffer(buf, ";\n");
+
+			if (strcmp(dbistemplate, "t") == 0)
+			{
+				appendPQExpBuffer(buf, "UPDATE pg_database SET datistemplate = 't' WHERE datname = ");
+				appendStringLiteral(buf, dbname, true);
+				appendPQExpBuffer(buf, ";\n");
+			}
 		}
 
 		if (!skip_acls &&
@@ -708,11 +711,12 @@ dumpCreateDB(PGconn *conn)
 		}
 
 		printf("%s", buf->data);
-		destroyPQExpBuffer(buf);
-		free(fdbname);
 
 		if (server_version >= 70300)
 			dumpDatabaseConfig(conn, dbname);
+
+		destroyPQExpBuffer(buf);
+		free(fdbname);
 	}
 
 	PQclear(res);