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https://dev.mysql.com/doc/refman/8.0/en/mysqld-safe.html
Note For some Linux platforms, MySQL installation from RPM or Debian packages includes systemd support for managing MySQL server startup and shutdown. Note The innodb_buffer_pool_in_core_file variable can be used to reduce the size of core files on ... mysqld_safe is the recommended way to start a mysqld server on ...
https://dev.mysql.com/doc/refman/8.0/en/source-configuration-options.html
(NDB 8.0.30 and earlier: Use WITH_NDBCLUSTER.) Note It is not possible to compile without Performance Schema support. Note With the WITH_LOCK_ORDER option enabled, MySQL builds require the flex program. Note Do not enable the WITH_TEST_TRACE_PLUGIN ... The CMake program provides a great deal of control over how you configure a MySQL source ...
https://dev.mysql.com/doc/refman/8.0/en/alter-table.html
Note After adding a column to a partitioned table using ALGORITHM=INSTANT, it is no longer possible to perform ALTER TABLE ... While the ALTER TABLE operation executes, the original table is readable by other sessions (with the exception noted ...
https://dev.mysql.com/doc/refman/8.0/en/connection-options.html
Note These options have an effect only for connections that use a transport protocol subject to encryption; that is, TCP/IP and Unix socket-file connections. Note Chained SSL certificate support was added in v8.0.30; previously only the first ...
https://dev.mysql.com/doc/refman/8.0/en/create-table-secondary-indexes.html
Indexing a Generated Column to Provide a JSON Column Index As noted elsewhere, JSON columns cannot be indexed directly. row *************************** Level: Note Code: 1003 Message: /* select#1 */ select ...A secondary index defined on a virtual ...
https://dev.mysql.com/doc/refman/8.0/en/data-masking-component-functions.html
Note The function is optimized to work faster for single byte strings (having equal byte length and character length). Note The function is optimized to work faster for single byte strings (having equal byte length and character length). Note For ...
https://dev.mysql.com/doc/refman/8.0/en/diagnostics-area.html
This value includes “not found” and exception conditions, but excludes warnings and notes. If the sql_notes system variable is set to 0, notes are not stored and do not increment warning_count. SQL statements produce diagnostic information that ...
https://dev.mysql.com/doc/refman/8.0/en/encrypted-connection-protocols-ciphers.html
In particular, note that to use TLSv1.3, both the MySQL server and the client application must be compiled using OpenSSL 1.1.1 or higher. For encrypted connections that use TLSv1.3, OpenSSL 1.1.1 and higher supports the following ciphersuites, the ... MySQL supports multiple TLS protocols and ciphers, and enables configuring which protocols and ciphers to permit for encrypted ...
https://dev.mysql.com/doc/refman/8.0/en/error-interfaces.html
The warning_count system variable indicates the number of errors, warnings, and notes (with notes excluded if the sql_notes system variable is disabled). mysql_warning_count() returns the number of errors, warnings, and notes for the most recent ...
https://dev.mysql.com/doc/refman/8.0/en/error-log-configuration.html
Explicit Error Log Configuration Note This configuration method is supported for backward compatibility. [mysqld] log_error_services='log_filter_internal; log_sink_internal; log_sink_json' Note To use the JSON log sink (log_sink_syseventlog) instead ... In MySQL 8.0, error logging uses the MySQL component architecture described at Section 7.5, “MySQL ...