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https://dev.mysql.com/doc/refman/8.4/en/error-log-rule-based-filtering.html
The log_filter_dragnet log filter component enables log filtering based on user-defined rules. To enable the log_filter_dragnet filter, first load the filter component, then modify the log_error_services value. The following example enables ...
https://dev.mysql.com/doc/refman/8.4/en/host-cache.html
The MySQL server maintains an in-memory host cache that contains information about clients: IP address, host name, and error information. The Performance Schema host_cache table exposes the contents of the host cache so that it can be examined ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-parameters.html
InnoDB Startup Options InnoDB System Variables System variables that are true or false can be enabled at server startup by naming them, or disabled by using a --skip- prefix. For example, to enable or disable the InnoDB adaptive hash index, you can ...
https://dev.mysql.com/doc/refman/8.4/en/json-search-functions.html
The functions in this section perform search or comparison operations on JSON values to extract data from them, report whether data exists at a location within them, or report the path to data within them. JSON_CONTAINS(target, candidate[, path]) ...
https://dev.mysql.com/doc/refman/8.4/en/keyring-component-installation.html
Keyring service consumers require that a keyring component or plugin be installed: To use a keyring component, begin with the instructions here. To use a keyring plugin instead, begin with Section 8.4.4.3, “Keyring Plugin Installation”. If you ...
https://dev.mysql.com/doc/refman/8.4/en/keyring-oci-component.html
Note The Oracle Cloud Infrastructure Vault keyring component is included in MySQL Enterprise Edition, a commercial product. component_keyring_oci is part of the component infrastructure that communicates with Oracle Cloud Infrastructure Vault for ...
https://dev.mysql.com/doc/refman/8.4/en/logical-operators.html
Table 14.5 Logical Operators Name Description AND, && Logical AND NOT, ! Negates value OR, || Logical OR XOR Logical XOR In SQL, all logical operators evaluate to TRUE, FALSE, or NULL (UNKNOWN). In MySQL, these are implemented as 1 (TRUE), 0 ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndbinfo-table-info.html
The table_info table provides information about logging, checkpointing, distribution, and storage options in effect for individual NDB tables.
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndb-import.html
ndb_import imports CSV-formatted data, such as that produced by mysqldump --tab, directly into NDB using the NDB API. ndb_import requires a connection to an NDB management server (ndb_mgmd) to function; it does not require a connection to a MySQL ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ps-tables.html
NDB provides information in the MySQL Performance Schema about ndbcluster plugin threads and instrumenting for transaction batch memory. These features are described in greater detail in the sections which follow. Thread names are shown in the name ...