The Box is fairly standard, with nothing much to boast over. Let’s deep dive right on into the review and not linger onward more than we should. I am eager to show the results of my experience with this model, as there aren’t that many popular open back IEMs out there for roughly $800 on the market at the moment. The Shozy Black Hole IEM is a $779 IEM that has been making the rounds in the audiophile world.
Using with AUTO_INCREMENTīecause a BLACKHOLE table does not store data, it will not maintain the AUTO_INCREMENT value. If you convert an InnoDB table which contains virtual columns to BLACKHOLE, then it produces an error. If you convert the same table back to InnoDB, then you will have to recreate them. If you convert an InnoDB table to BLACKHOLE, then the foreign keys will disappear. Using with Foreign Keysįoreign keys are not supported. Triggers with the FOR EACH ROW clause do not apply, since the tables have no rows.
WIZARDHAX BLACKHOLE UPDATE
Triggers for UPDATE and DELETE statements are not activated. Some triggers work with the BLACKHOLE storage engine.īEFORE triggers for INSERT statements are still activated. However, since rows are not stored, it is important to use statement-based rather than the row or mixed format, as UPDATE and DELETE statements are neither logged nor replicated. If the binary log is enabled, all SQL statements will be logged as usual, and replicated to any slave servers. However, no data changes are actually applied. INSERT, UPDATE, and DELETE statements all work with the BLACKHOLE storage engine.
Using the BLACKHOLE Storage Engine Using with DML If you installed the plugin by providing the -plugin-load or the -plugin-load-add options in a relevant server option group in an option file, then those options should be removed to prevent the plugin from being loaded the next time the server is restarted. For example: UNINSTALL SONAME 'ha_blackhole'
You can uninstall the plugin dynamically by executing UNINSTALL SONAME or UNINSTALL PLUGIN. This can be specified as a command-line argument to mysqld or it can be specified in a relevant server option group in an option file. The plugin can be installed this way by providing the -plugin-load or the -plugin-load-add options. The second method can be used to tell the server to load the plugin when it starts up.
WIZARDHAX BLACKHOLE INSTALL
For example: INSTALL SONAME 'ha_blackhole' You can install the plugin dynamically by executing INSTALL SONAME or INSTALL PLUGIN. The first method can be used to install the plugin without restarting the server. There are two methods that can be used to install the plugin with MariaDB. Although the plugin's shared library is distributed with MariaDB by default, the plugin is not actually installed by MariaDB by default.