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https://dev.mysql.com/doc/refman/8.4/en/information-schema-innodb-metrics-table.html
row *************************** NAME: dml_inserts SUBSYSTEM: dml COUNT: 3 MAX_COUNT: 3 MIN_COUNT: NULL AVG_COUNT: 0.046153846153846156 COUNT_RESET: 3 MAX_COUNT_RESET: 3 MIN_COUNT_RESET: NULL AVG_COUNT_RESET: NULL TIME_ENABLED: 2014-12-04 14:18:28 ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-fulltext-index.html
If you want to create your own FTS_DOC_ID column, the column must be defined as BIGINT UNSIGNED NOT NULL and named FTS_DOC_ID (all uppercase), as in the following example: Note The FTS_DOC_ID column does not need to be defined as an AUTO_INCREMENT ... Full-text indexes are created on text-based columns (CHAR, VARCHAR, or TEXT columns) to speed up queries and DML operations on data contained within those ...
https://dev.mysql.com/doc/refman/8.4/en/partitioning-key.html
Unlike the case with other partitioning types, columns used for partitioning by KEY are not restricted to integer or NULL values. Partitioning by key is similar to partitioning by hash, except that where hash partitioning employs a user-defined ...
https://dev.mysql.com/doc/refman/8.4/en/spatial-aggregate-functions.html
If all arguments are NULL or the aggregate result is empty, the return value is NULL. The result is the narrowest MultiXxx or GeometryCollection value possible, with the result type determined from the non-NULL geometry arguments as follows: If all ... MySQL supports aggregate functions that perform a calculation on a set of ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-fetch-lengths.html
In addition, if the result set contains binary data, you must use this function to determine the size of the data, because strlen() returns incorrect results for any field containing null characters. The length for empty columns and for columns ...
https://dev.mysql.com/doc/extending-mysql/8.4/en/client-plugin-descriptors.html
desc: A string that provides a general description of the plugin. init: A once-only initialization function, or NULL if there is no such function. Any message returned by the init function must be null-terminated, so the maximum message length is ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-options4.html
The first and second strings indicate the key and value, respectively. The second argument points to a character string that provides the password value. Example This example demonstrates the calls that specify connection attributes: MYSQL mysql; ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndbd.html
--bind-address Command-Line Format --bind-address=name Type String Default Value Causes ndbd to bind to a specific network interface (host name or IP address). --connect-string Command-Line Format --connect-string=connection_string Type String ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-options.html
The argument is a pointer to a null-terminated string naming the key. The argument is a host name or IP address (specified as a string). Interpretation of the MYSQL_OPT_LOAD_DATA_LOCAL_DIR value is as follows: If the value is the null pointer (the ... int mysql_options(MYSQL *mysql, enum mysql_option option, const void *arg) Description Can be used to set extra connect options and affect behavior for a ...
https://dev.mysql.com/doc/refman/8.4/en/version-tokens-usage.html
Each of those functions, if successful, returns a binary string indicating what action occurred. Version Tokens treats token names and values as binary strings, so comparisons are case-sensitive. Otherwise, an error occurs: mysql> SELECT ... Before ...