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https://dev.mysql.com/doc/refman/8.4/en/json-attribute-functions.html
The functions in this section return attributes of JSON values. An error occurs if the argument is not a valid JSON document. An empty array, empty object, or scalar value has depth 1. A nonempty array containing only elements of depth 1 or ...
https://dev.mysql.com/doc/refman/8.4/en/json.html
The JSON data type provides these advantages over storing JSON-format strings in a string column: Automatic validation of JSON documents stored in JSON columns. JSON documents stored in JSON columns are converted to an internal format that permits ...
https://dev.mysql.com/doc/refman/8.4/en/keywords.html
Certain keywords, such as SELECT, DELETE, or BIGINT, are reserved and require special treatment for use as identifiers such as table and column names. This may also be true for the names of built-in functions. Some keywords which are otherwise ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-replication-schema.html
ndb_apply_status Table ndb_binlog_index Table ndb_replication Table Replication in NDB Cluster makes use of a number of dedicated tables in the mysql database on each MySQL Server instance acting as an SQL node in both the cluster being replicated ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-nutshell.html
This section summarizes what has been added to, deprecated in, changed, and removed from MySQL 8.4 since MySQL 8.0. A companion section lists MySQL server options and variables that have been added, deprecated, or removed in MySQL 8.4; see Section ...
https://dev.mysql.com/doc/refman/8.4/en/partitioning-limitations-functions.html
This section discusses limitations in MySQL Partitioning relating specifically to functions used in partitioning expressions. Each of these functions returns an integer only if it is passed an argument of an exact numeric type, such as one of the ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-error-summary-tables.html
The Performance Schema maintains summary tables for aggregating statistical information about server errors (and warnings). For a list of server errors, see Server Error Message Reference. Collection of error information is controlled by the error ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-processlist-table.html
The MySQL process list indicates the operations currently being performed by the set of threads executing within the server. For a comparison of this table with other sources, see Sources of Process Information. If you have the PROCESS privilege, ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-replication-applier-filters-table.html
This table shows the replication channel specific filters configured on this replica. Each row provides information on a replication channel's configured type of filter. The replication_applier_filters table has these columns: CHANNEL_NAME The name ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-replication-applier-global-filters-table.html
This table shows the global replication filters configured on this replica. The replication_applier_global_filters table has these columns: FILTER_NAME The type of replication filter that has been configured. FILTER_RULE The rules configured for ...