text: -- Copyright (c) 2007, 2013, Oracle and/or its affiliates.
  -- 
  -- This program is free software; you can redistribute it and/or modify
  -- it under the terms of the GNU General Public License as published by
  -- the Free Software Foundation; version 2 of the License.
  -- 
  -- This program is distributed in the hope that it will be useful,
  -- but WITHOUT ANY WARRANTY; without even the implied warranty of
  -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  -- GNU General Public License for more details.
  -- 
  -- You should have received a copy of the GNU General Public License
  -- along with this program; if not, write to the Free Software
  -- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335  USA
  
  --
  -- The initial data for system tables of MySQL Server
  --
  
  -- When setting up a "cross bootstrap" database (e.g., creating data on a Unix
  -- host which will later be included in a Windows zip file), any lines
  -- containing "@current_hostname" are filtered out by mysql_install_db.
  
  -- Get the hostname, if the hostname has any wildcard character like "_" or "%" 
  -- add escape character in front of wildcard character to convert "_" or "%" to
  -- a plain character
  SELECT LOWER( REPLACE((SELECT REPLACE(@@hostname,'_','\_')),'%','\%') )INTO @current_hostname;
  SELECT '{"access":18446744073709551615}' INTO @all_privileges;
  SELECT '{"access":18446744073709551615,"plugin":"mysql_native_password","authentication_string":"invalid","auth_or":[{},{"plugin":"unix_socket"}]}' into @all_with_auth;
  
  
  -- Fill "global_priv" table with default users allowing root access
  -- from local machine if "global_priv" table didn't exist before
  CREATE TEMPORARY TABLE tmp_user_nopasswd LIKE global_priv;
  CREATE TEMPORARY TABLE tmp_user_socket LIKE global_priv;
  -- Classic passwordless root account.
  INSERT INTO tmp_user_nopasswd VALUES ('localhost','root',@all_privileges);
  REPLACE INTO tmp_user_nopasswd SELECT @current_hostname,'root',@all_privileges FROM dual WHERE @current_hostname != 'localhost';
  REPLACE INTO tmp_user_nopasswd VALUES ('127.0.0.1','root',@all_privileges);
  REPLACE INTO tmp_user_nopasswd VALUES ('::1','root',@all_privileges);
  -- More secure root account using unix socket auth.
  INSERT INTO tmp_user_socket VALUES ('localhost', 'root',@all_with_auth);
  REPLACE INTO tmp_user_socket VALUES ('localhost',IFNULL(@auth_root_socket, 'root'),@all_with_auth);
  IF @auth_root_socket is not null THEN
    IF not exists(select 1 from information_schema.plugins where plugin_name='unix_socket') THEN
       INSTALL SONAME 'auth_socket'; END IF; END IF;
  
  INSERT INTO global_priv SELECT * FROM tmp_user_nopasswd WHERE @had_user_table=0 AND @auth_root_socket IS NULL;
  INSERT INTO global_priv SELECT * FROM tmp_user_socket WHERE @had_user_table=0 AND @auth_root_socket IS NOT NULL;
  DROP TABLE tmp_user_nopasswd, tmp_user_socket;
  
  CREATE TEMPORARY TABLE tmp_proxies_priv LIKE proxies_priv;
  INSERT INTO tmp_proxies_priv SELECT @current_hostname, 'root', '', '', TRUE, '', now() FROM DUAL WHERE @current_hostname != 'localhost';
  INSERT INTO  proxies_priv SELECT * FROM tmp_proxies_priv WHERE @had_proxies_priv_table=0;
  DROP TABLE tmp_proxies_priv;
  