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https://dev.mysql.com/doc/refman/8.0/en/sys-schema-tables-with-full-table-scans.html
latency The total wait time of full scans of the table. These views display which tables are being accessed with full table scans. The schema_tables_with_full_table_scans and x$schema_tables_with_full_table_scans views have these columns: ...
https://dev.mysql.com/doc/refman/8.0/en/temporary-table-problems.html
Temporary tables created with CREATE TEMPORARY TABLE have the following limitations: TEMPORARY tables are supported only by the InnoDB, MEMORY, MyISAM, and MERGE storage engines. Use ALTER TABLE instead: ALTER TABLE old_name RENAME new_name; You ...
https://dev.mysql.com/doc/refman/8.0/en/thread-commands.html
A thread can have any of the following Command values: Binlog Dump This is a thread on a replication source for sending binary log contents to a replica. Connect Used by replication receiver threads connected to the source, and by replication ...
https://dev.mysql.com/doc/refman/8.0/en/update-optimization.html
Performing multiple updates together is much quicker than doing one at a time if you lock the table. An update statement is optimized like a SELECT query with the additional overhead of a write. The speed of the write depends on the amount of data ...
https://dev.mysql.com/doc/refman/8.0/en/window-functions-named-windows.html
Windows can be defined and given names by which to refer to them in OVER clauses. If present in a query, the WINDOW clause falls between the positions of the HAVING and ORDER BY clauses, and has this syntax: WINDOW window_name AS (window_spec) [, ...
https://dev.mysql.com/doc/refman/8.0/en/x-plugin-options-variables.html
If configuration values specified at startup time are incorrect, X Plugin could fail to initialize properly and the server does not load it. This section describes the command options and system variables that configure X Plugin, as well as the ...