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https://dev.mysql.com/doc/refman/8.0/en/insert.html
For information about generated columns, see Section 15.1.20.8, “CREATE TABLE and Generated Columns”. | TABLE table_name | VALUES row_constructor_list } [ON DUPLICATE KEY UPDATE assignment_list] value: {expr | DEFAULT} value_list: value [, ...
https://dev.mysql.com/doc/refman/8.0/en/data-dictionary-information-schema.html
In particular, for each INFORMATION_SCHEMA table that is a view on data dictionary tables: The server no longer must create a temporary table for each query of the INFORMATION_SCHEMA table. When the underlying data dictionary tables store values ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo.html
ndbinfo is included with NDB Cluster support in the MySQL Server; no special compilation or configuration steps are required; the tables are created by the MySQL Server when it connects to the cluster. This database contains a number of tables, each ... ndbinfo is a database containing information specific to NDB ...
https://dev.mysql.com/doc/refman/8.0/en/hash-joins.html
row *************************** id: 1 select_type: SIMPLE table: t1 partitions: NULL type: ALL possible_keys: NULL key: NULL key_len: NULL ref: NULL rows: 1 filtered: 100.00 Extra: NULL *************************** 2. Prior to MySQL 8.0.20, a hash ...
https://dev.mysql.com/doc/refman/8.0/en/ldap-pluggable-authentication.html
LDAP pluggable authentication provides these capabilities: External authentication: LDAP authentication enables MySQL Server to accept connections from users defined outside the MySQL grant tables in LDAP directories. The following tables show the ... Note LDAP pluggable authentication is an extension included in MySQL Enterprise Edition, a commercial ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-server-locks.html
The server_locks table is similar in structure to the cluster_locks table, and provides a subset of the information found in the latter table, but which is specific to the SQL node (MySQL server) where it resides. (The cluster_locks table provides ...This may be useful for correlating locking patterns with specific MySQL user sessions, queries, or use ...
https://dev.mysql.com/doc/refman/8.0/en/reproducible-test-case.html
For information about steps to take when encountering InnoDB table corruption, see Section 1.5, “How to Report Bugs or Problems”. If you encounter corrupted MyISAM tables or if mysqld always fails after some update statements, you can test ...
https://dev.mysql.com/doc/refman/8.0/en/sys-innodb-buffer-stats-by-table.html
These views summarize the information in the INFORMATION_SCHEMA INNODB_BUFFER_PAGE table, grouped by schema and table. Warning Querying views that access the INNODB_BUFFER_PAGE table can affect performance. Do not query these views on a production ...To avoid impacting performance on a production system, reproduce the issue you want to investigate and query buffer pool statistics on a test ...
https://dev.mysql.com/doc/refman/8.0/en/password-management.html
To establish policy for individual accounts, use the PASSWORD EXPIRE option of the CREATE USER and ALTER USER statements. To establish policy for individual accounts, use the PASSWORD HISTORY and PASSWORD REUSE INTERVAL options of the CREATE USER ...
https://dev.mysql.com/doc/refman/8.0/en/rewriter-query-rewrite-plugin-reference.html
Users communicate with the plugin by modifying the set of rules stored in this table. The plugin communicates information to users by setting the table's message column. Note The rules table is loaded into the plugin by the flush_rewrite_rules ...