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78 lines
2.9 KiB
78 lines
2.9 KiB
/* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#ifndef DD_UPGRADE__SERVER_H_INCLUDED
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#define DD_UPGRADE__SERVER_H_INCLUDED
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#include <stdio.h>
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#include "typelib.h"
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class THD;
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class Time_zone;
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extern TYPELIB upgrade_mode_typelib;
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enum enum_upgrade_mode : int {
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UPGRADE_NONE,
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UPGRADE_MINIMAL,
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UPGRADE_AUTO,
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UPGRADE_FORCE
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};
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namespace dd {
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namespace upgrade {
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/**
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Upgrades/restores the system tables to defaults of the current MySQL version.
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This is a replacement for the mysql_upgrade client.
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There are four SQL scripts executed:
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1. mysql_system_tables.sql - Creates the system tables
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2. mysql_system_tables_fix.sql - Updates the system table
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3. mysql_system_tables_data_fix.sql - Fills the system tables with meta data
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4. mysql_sys_schema.sql - Create and/or updates the sys schema
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Then the system tables are checked by executing CHECK TABLE SQL statements.
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This function is called during startup if the MySQL version present in
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DD_properties in not the same as the current MySQL version. This function can
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also be called if the server is started with --upgrade=FORCE option.
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If the server is started with --upgrade=MINIMAL option with a newer MySQL
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server version Z on an older data directory of MySQL server version X, this
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function checks if server upgrade has been skipped before using another MySQL
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server version Y such that Y != Z, X < Y and X < Z. If yes, we abort.
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The server upgrade ends with updating the MYSQLD_UPGRADED_VERSION value in
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DD_properties to the current server version (MYSQL_VERSION_ID).
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@param[in] thd Thread handle.
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@retval false ON SUCCESS
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@retval true ON FAILURE
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*/
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bool upgrade_system_schemas(THD *thd);
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bool no_server_upgrade_required();
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} // namespace upgrade
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} // namespace dd
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#endif // DD_UPGRADE__SERVER_H_INCLUDED
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