MYSQL_UPGRADE(1) MySQL Database System MYSQL_UPGRADE(1)NAMEmysql_upgrade - check tables for MySQL upgrade
SYNOPSISmysql_upgrade [options]
DESCRIPTIONmysql_upgrade should be executed each time you upgrade MySQL. It
supersedes the older mysql_fix_privilege_tables script, which should no
longer be used.
mysql_upgrade checks all tables in all databases for incompatibilities
with the current version of MySQL Server. If a table is found to have a
possible incompatibility, it is checked. If any problems are found, the
table is repaired. mysql_upgrade also upgrades the system tables so
that you can take advantage of new privileges or capabilities that
might have been added.
All checked and repaired tables are marked with the current MySQL
version number. This ensures that next time you run mysql_upgrade with
the same version of the server, it can tell whether there is any need
to check or repair the table again.
mysql_upgrade also saves the MySQL version number in a file named
mysql_upgrade_info in the data directory. This is used to quickly check
if all tables have been checked for this release so that table-checking
can be skipped. To ignore this file, use the --force option.
Caution
Some upgrade incompatibilities may require special handling before you
upgrade your MySQL installation and run mysql_upgrade. See
Section 2.11.1, “Upgrading MySQL”, for instructions on determining
whether any such incompatibilities apply to your installation and how
to handle them.
mysql_upgrade executes the following commands to check and repair
tables and to upgrade the system tables. fix_priv_tables represents a
script generated interally by mysql_upgrade that contains SQL
statements to upgrade the tables in the mysql database:
mysqlcheck --check-upgrade --all-databases --auto-repair
mysql < fix_priv_tables
mysqlcheck --all-databases --check-upgrade --fix-db-names --fix-table-names
Note
Prior to MySQL 6.0.10, mysql_upgrade does not run the third command,
which is necessary to re-encode database or table names that contain
non-alphanumeric characters. (They still appear after the upgrade with
the #mysql50# prefix described in Section 8.2.3, “Mapping of
Identifiers to File Names”.) If you have such database or table names,
execute the third command manually after executing mysql_upgrade.
For details about what is checked, see the description of the FOR
UPGRADE option of the CHECK TABLE statement (see Section 12.5.2.2,
“CHECK TABLE Syntax”).
In MySQL 5.1.7, mysql_upgrade was added as a shell script and worked
only for Unix systems. As of MySQL 5.1.10, mysql_upgrade is an
executable binary and is available on all systems.
If you install MySQL from RPM packages on Linux, you must install the
server and client RPMs. mysql_upgrade is included in the server RPM
but requires the client RPM because the latter includes mysqlcheck.
(See Section 2.4, “Installing MySQL from RPM Packages on Linux”.)
To use mysql_upgrade, make sure that the server is running, and then
invoke it like this:
shell> mysql_upgrade [options]
After running mysql_upgrade, stop the server and restart it so that any
changes made to the system tables take effect.
mysql_upgrade supports the options in the following list. It also reads
option files (the [mysql_upgrade] and [client] groups) and supports the
options for processing them described at Section 4.2.3.2.1,
“Command-Line Options that Affect Option-File Handling”. Other options
are passed to mysqlcheck. For example, it might be necessary to specify
the --password[=password] option.
· --help
Display a short help message and exit.
· --basedir=path
The path to the MySQL installation directory.
· --datadir=path
The path to the data directory.
· --debug-check
Print some debugging information when the program exits.
· --debug-info, -T
Print debugging information and memory and CPU usage statistics when
the program exits.
· --force
Ignore the mysql_upgrade_info file and force execution of mysqlcheck
even if mysql_upgrade has already been executed for the current
version of MySQL.
· --tmpdir=path, -t path
The path name of the directory to use for creating temporary files.
This option was added in MySQL 6.0.6.
· --user=user_name, -u user_name
The MySQL user name to use when connecting to the server. The
default user name is root.
· --verbose
Verbose mode. Print more information about what the program does.
COPYRIGHT
Copyright 2007-2008 MySQL AB, 2009 Sun Microsystems, Inc.
This documentation is free software; you can redistribute it and/or
modify it only under the terms of the GNU General Public License as
published by the Free Software Foundation; version 2 of the License.
This documentation 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 the program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see
http://www.gnu.org/licenses/.
SEE ALSO
For more information, please refer to the MySQL Reference Manual, which
may already be installed locally and which is also available online at
http://dev.mysql.com/doc/.
AUTHOR
MySQL AB (http://www.mysql.com/).
MySQL 6.0 04/30/2009 MYSQL_UPGRADE(1)
