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https://dev.mysql.com/doc/refman/8.0/en/innodb-locking.html
Client A creates a table containing two index records (90 and 102) and then starts a transaction that places an exclusive lock on index records with an ID greater than 100. Intention Locks InnoDB supports multiple granularity locking which permits ...Shared and Exclusive Locks Intention Locks Record Locks Gap Locks Next-Key Locks Insert Intention Locks AUTO-INC Locks Predicate Locks for Spatial Indexes Shared and Exclusive Locks InnoDB implements standard row-level locking where there are two types of locks, shared (S) locks and exclusive (X) ...
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/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 ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-cpustat.html
The cpustat table provides per-thread CPU statistics gathered each second, for each thread running in the NDB kernel.
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-disk-write-speed-aggregate-node.html
The disk_write_speed_aggregate_node table provides aggregated information per node about the speed of disk writes during LCP, backup, and restore operations.
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-disk-write-speed-aggregate.html
The disk_write_speed_aggregate table provides aggregated information about the speed of disk writes during LCP, backup, and restore operations.
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-disk-write-speed-base.html
The disk_write_speed_base table provides base information about the speed of disk writes during LCP, backup, and restore operations.
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-error-messages.html
The error_messages table provides information about The error_messages table contains the following columns: error_code Numeric error code error_description Description of error error_status Error status code error_classification Error ...This is ...