Documentation Home
MySQL 8.0 Reference Manual
Related Documentation Download this Manual
PDF (US Ltr) - 40.9Mb
PDF (A4) - 41.0Mb
PDF (RPM) - 39.7Mb
HTML Download (TGZ) - 9.5Mb
HTML Download (Zip) - 9.6Mb
HTML Download (RPM) - 8.1Mb
Man Pages (TGZ) - 256.7Kb
Man Pages (Zip) - 366.8Kb
Info (Gzip) - 3.9Mb
Info (Zip) - 3.9Mb
Excerpts from this Manual

MySQL 8.0 Reference Manual  /  ...  /  Installing or Uninstalling the Rewriter Query Rewrite Plugin

5.6.4.1 Installing or Uninstalling the Rewriter Query Rewrite Plugin

Note

If installed, the Rewriter plugin involves some overhead even when disabled. To avoid this overhead, do not install the plugin unless you plan to use it.

To install or uninstall the Rewriter query rewrite plugin, choose the appropriate script located in the share directory of your MySQL installation:

  • install_rewriter.sql: Choose this script to install the Rewriter plugin and its associated elements.

  • uninstall_rewriter.sql: Choose this script to uninstall the Rewriter plugin and its associated elements.

Run the chosen script as follows:

shell> mysql -u root -p < install_rewriter.sql
Enter password: (enter root password here)

The example here uses the install_rewriter.sql installation script. Substitute uninstall_rewriter.sql if you are uninstalling the plugin.

Running an installation script should install and enable the plugin. To verify that, connect to the server and execute this statement:

mysql> SHOW GLOBAL VARIABLES LIKE 'rewriter_enabled';
+------------------+-------+
| Variable_name    | Value |
+------------------+-------+
| rewriter_enabled | ON    |
+------------------+-------+

For usage instructions, see Section 5.6.4.2, “Using the Rewriter Query Rewrite Plugin”. For reference information, see Section 5.6.4.3, “Rewriter Query Rewrite Plugin Reference”.