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https://dev.mysql.com/doc/refman/8.0/en/lock-tables.html
With auto-reconnect disabled, if the connection drops, an error occurs for the next statement issued. The client can detect the error and take appropriate action such as reacquiring the locks or redoing the transaction. For example, if you attempt a ... LOCK {TABLE | TABLES} tbl_name [[AS] alias] lock_type [, tbl_name [[AS] alias] lock_type] ...
https://dev.mysql.com/doc/refman/8.0/en/mysqladmin.html
debug Prior to MySQL 8.0.20, tell the server to write debug information to the error log. Following the flush-logs command, you can provide a space-separated list of one or more of the following log types: binary, engine, error, general, relay, slow. This is 0 even in case of an error such as Access denied, because this means that the server is running but refused the connection, which is different from the server not ...
https://dev.mysql.com/doc/refman/8.0/en/pluggable-authentication-system-variables.html
If FIDO authentication is attempted and this value is not the one expected by the FIDO device, the device assumes that it is not talking to the correct server and an error occurs. authentication_ldap_sasl_log_status Command-Line Format ...Note As of ...
https://dev.mysql.com/doc/refman/8.0/en/spatial-geojson-functions.html
Option Value Meaning 1 Reject the document and produce an error. If srid refers to an undefined spatial reference system (SRS), an ER_SRS_NOT_FOUND error occurs. For geographic SRS geometry arguments, if any argument has a longitude or latitude that ... This section describes functions for converting between GeoJSON documents and spatial ...
https://dev.mysql.com/doc/refman/8.0/en/using-systemd.html
This script assists in creating the error log file only if the log location matches a pattern (/var/log/mysql*.log for RPM platforms, /var/log/mysql/*.log for Debian platforms). In other cases, the error log directory must be writable or the error ...If you install MySQL from a source distribution on a platform that uses systemd, obtain systemd support for MySQL by configuring the distribution using the -DWITH_SYSTEMD=1 CMake ...
https://dev.mysql.com/doc/refman/8.0/en/plugin-loading.html
Each plugin_library is the name of a library file that contains plugin code, and each name is the name of a plugin to load. Alternatively, the INSTALL PLUGIN statement causes the server to load the plugin code from the library file at runtime: ...
https://dev.mysql.com/doc/refman/8.0/en/events-status-info.html
INTO var_list statements, if the query returns no rows, a warning with error code 1329 occurs (No data), and the variable values remain unchanged. The Event Scheduler writes information about event execution that terminates with an error or warning ...See Section 27.4.6, “The Event Scheduler and MySQL Privileges” for an ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-statement-tables.html
Final instrument names correspond to server commands and SQL statements: Server commands correspond to the COM_xxx codes defined in the mysql_com.h header file and processed in sql/sql_parse.cc. Some final instrument names are specific to error ...
https://dev.mysql.com/doc/refman/8.0/en/x-plugin-options-system-variables.html
After this time, if the read operation is not successful, X Plugin closes the connection and returns a warning notice with the error code ER_IO_READ_ERROR to the client application. Important Because X Plugin is not a mandatory plugin, it does not ... To control activation of X Plugin, use this option: --mysqlx[=value] Command-Line Format --mysqlx[=value] Type Enumeration Default Value ON Valid Values ONOFFFORCEFORCE_PLUS_PERMANENT This option controls how the server loads X Plugin at ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-online-operations.html
row *************************** Level: Warning Code: 1478 Message: DYNAMIC column c4 with STORAGE DISK is not supported, column will become FIXED mysql> SHOW CREATE TABLE t1\G *************************** 1. If you attempt to add a column online ...