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https://dev.mysql.com/doc/refman/9.7/en/temporary-table-problems.html
Temporary tables created with CREATE TEMPORARY TABLE have the following limitations: TEMPORARY tables are supported only by the InnoDB, MEMORY, MyISAM, and MERGE storage engines. Use ALTER TABLE instead: ALTER TABLE old_name RENAME new_name; You ...
https://dev.mysql.com/doc/refman/9.7/en/test-pluggable-authentication.html
MySQL includes a test plugin that checks account credentials and logs success or failure to the server error log. This is a loadable plugin (not built in) and must be installed prior to use. The test plugin source code is separate from the server ...
https://dev.mysql.com/doc/refman/9.7/en/thread-commands.html
A thread can have any of the following Command values: Binlog Dump This is a thread on a replication source for sending binary log contents to a replica. Connect Used by replication receiver threads connected to the source, and by replication ...
https://dev.mysql.com/doc/refman/9.7/en/thread-pool.html
Note MySQL Enterprise Thread Pool is an extension included in MySQL Enterprise Edition, a commercial product. MySQL Enterprise Edition includes MySQL Enterprise Thread Pool, implemented using a server plugin. The default thread-handling model in ...
https://dev.mysql.com/doc/refman/9.7/en/unix-signal-response.html
On Unix and Unix-like systems, a process can be the recipient of signals sent to it by the root system account or the system account that owns the process. Some command interpreters associate certain key sequences with signals, such as Control+C to ...
https://dev.mysql.com/doc/refman/9.7/en/update-optimization.html
An update statement is optimized like a SELECT query with the additional overhead of a write. The speed of the write depends on the amount of data being updated and the number of indexes that are updated. Another way to get fast updates is to delay ...
https://dev.mysql.com/doc/refman/9.7/en/updating-yum-repo.html
For supported Yum-based platforms (see Section 2.5.1, “Installing MySQL on Linux Using the MySQL Yum Repository”, for a list), you can perform an in-place upgrade for MySQL (that is, replacing the old version and then running the new version ...
https://dev.mysql.com/doc/refman/9.7/en/upgrade-before-you-begin.html
The backup should include the mysql system database, which contains the MySQL data dictionary tables and system tables. Important Downgrade from MySQL 9.7 to MySQL 9.6, or from a MySQL 9.7 release to a previous MySQL 9.7 release, is not supported.
https://dev.mysql.com/doc/refman/9.7/en/using-spatial-indexes.html
The optimizer investigates whether available spatial indexes can be involved in the search for queries that use a function such as MBRContains() or MBRWithin() in the WHERE clause. The following query finds all objects that are in the given ...
https://dev.mysql.com/doc/refman/9.7/en/using-system-variables.html
The MySQL server maintains many system variables that configure its operation. Section 7.1.8, “Server System Variables”, describes the meaning of these variables. System variables can be set at server startup using options on the command line ...