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https://dev.mysql.com/doc/refman/8.0/en/structured-system-variables.html
If this were not true (that is, if two different types of structured variables could share component member names), it would not be clear which default structured variable to use for references to member names that are not qualified by an instance ... A structured variable differs from a regular system variable in two respects: Its value is a structure with components that specify server parameters considered to be closely ...
https://dev.mysql.com/doc/refman/8.0/en/symbolic-links-to-tables.html
The same is true for the ALTER TABLE, OPTIMIZE TABLE, and REPAIR TABLE statements. Note Symbolic link support as described here, along with the --symbolic-links option that controls it, and is deprecated; expect these to be removed in a future ...
https://dev.mysql.com/doc/refman/8.0/en/sys-ps-setup-reset-to-default.html
Parameters in_verbose BOOLEAN: Whether to display information about each setup stage during procedure execution. row *************************** status: Resetting: setup_actors DELETE FROM performance_schema.setup_actors WHERE NOT (HOST = '%' AND ...
https://dev.mysql.com/doc/refman/8.0/en/sys-schema-prerequisites.html
Also, remember that if you enable additional configuration, you can easily restore the default configuration like this: CALL sys.ps_setup_reset_to_default(TRUE); . Before using the sys schema, the prerequisites described in this section must be ...
https://dev.mysql.com/doc/refman/8.0/en/testing-server.html
If that is not true, adjust the command path names accordingly. After the data directory is initialized and you have started the server, perform some simple tests to make sure that it works satisfactorily. This section assumes that your current ...
https://dev.mysql.com/doc/refman/8.0/en/thread-pool-tuning.html
If all calls blocking the MySQL Server were reported to the thread pool, it would always know when execution threads are blocked, but this may not always be true. This section provides guidelines on determining the best configuration for thread ...
https://dev.mysql.com/doc/refman/8.0/en/time-zone-support.html
It remains true that literal temporal values having a time part that ends with :59:60 or :59:61 are considered invalid. This section describes the time zone settings maintained by MySQL, how to load the system tables required for named time ...
https://dev.mysql.com/doc/refman/8.0/en/timestamp-lookups.html
It remains true that index-using queries match the converted search value to a single value in the UTC index entries, rather than matching multiple UTC values that convert to the search value in the session time zone. Temporal values are stored in ...
https://dev.mysql.com/doc/refman/8.0/en/truncate-table.html
This is true even for MyISAM and InnoDB, which normally do not reuse sequence values. Logically, TRUNCATE TABLE is similar to a DELETE statement that deletes all rows, or a sequence of DROP TABLE and CREATE TABLE statements. To achieve high ...
https://dev.mysql.com/doc/refman/8.0/en/tuning-trace-purging.html
If offset is less than 0, that is not true: instead, -offset traces are kept in memory. Thus, if a statement contains substatements (such as invoking stored procedures, stored functions, or triggers), the topmost statement and substatements each ...