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https://dev.mysql.com/doc/refman/8.0/en/performance-schema-prepared-statements-instances-table.html
Instrument Server Command statement/com/Prepare COM_STMT_PREPARE statement/com/Execute COM_STMT_EXECUTE statement/sql/prepare_sql SQLCOM_PREPARE statement/sql/execute_sql SQLCOM_EXECUTE The Performance Schema manages the contents of the ...This is ... The Performance Schema provides instrumentation for prepared statements, for which there are two protocols: The binary ...
https://dev.mysql.com/doc/refman/8.0/en/mysqlbinlog.html
When you specify this option, mysqlbinlog stops with an error message if it encounters any events that are disallowed under the REQUIRE_ROW_FORMAT restrictions, including LOAD DATA INFILE instructions, creating or dropping temporary tables, INTVAR, ...Note that from MySQL 8.0.14, mysqlbinlog returns a suitable error if you attempt to read an encrypted binary log file directly, but older versions of mysqlbinlog do not recognise the file as a binary log file at ...
https://dev.mysql.com/doc/refman/8.0/en/corrupted-myisam-tables.html
Even though the MyISAM table format is very reliable (all changes to a table made by an SQL statement are written before the statement returns), you can still get corrupted tables if any of the following events occur: The mysqld process is killed ...An unexpected computer shutdown occurs (for example, the computer is turned ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-operations-per-fragment.html
This currently has the following formats: Base table: DbName/def/TblName BLOB table: DbName/def/NDB$BLOB_BaseTblId_ColNo Ordered index: sys/def/BaseTblId/IndexName Unique index: sys/def/BaseTblId/IndexName$unique The $unique suffix shown for unique ... The operations_per_fragment table provides information about the operations performed on individual fragments and fragment replicas, as well as about some of the results from these ...
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/roles.html
You should keep in mind that this distinction is not immutable; a user with appropriate privileges can lock or unlock roles or (other) users after they have been created. The following list summarizes role-management capabilities provided by MySQL: ...Like user accounts, roles can have privileges granted to and revoked from ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-table-distribution-status.html
The table_distribution_status table provides information about the progress of table distribution for NDB tables. is_reorg_ongoing Whether the table is currently being reorganized (1 if true) .
https://dev.mysql.com/doc/refman/8.0/en/innodb-statistics-estimation.html
Optimizer statistics are not persisted to disk when innodb_stats_persistent=OFF or when individual tables are created or altered with STATS_PERSISTENT=0. Optimizer Statistics Updates Non-persistent optimizer statistics are updated when: Running ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-wait-summary-tables.html
If an instrument is used to create multiple instances, each instance has a unique OBJECT_INSTANCE_BEGIN value and is summarized separately in this table. The Performance Schema maintains tables for collecting current and recent wait events, and ...
https://dev.mysql.com/doc/refman/8.0/en/sys-statement-performance-analyzer.html
Parameters in_action ENUM('snapshot', 'overall', 'delta', 'create_tmp', 'create_table', 'save', 'cleanup'): The action to take. If in_table is NULL and no snapshot exists, a new snapshot is created. create_table: Create a regular table suitable for ... Creates a report of the statements running on the ...The views ...