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https://dev.mysql.com/doc/refman/8.0/en/processlist-access.html
Note As of MySQL 8.0.22, an alternative implementation for SHOW PROCESSLIST is available based on the Performance Schema processlist table, which, like the threads table, does not require a mutex and has better performance characteristics. The ...
https://dev.mysql.com/doc/refman/8.0/en/binary-log-mixed.html
When one or more tables with AUTO_INCREMENT columns are updated and a trigger or stored function is invoked. When the body of a view requires row-based replication, the statement creating the view also uses it. For example, this occurs when the ...
https://dev.mysql.com/doc/refman/8.0/en/show-index.html
However, prefix lengths for index specifications in CREATE TABLE, ALTER TABLE, and CREATE INDEX statements are interpreted as number of characters for nonbinary string types (CHAR, VARCHAR, TEXT) and number of bytes for binary string types (BINARY, ... SHOW [EXTENDED] {INDEX | INDEXES | KEYS} {FROM | IN} tbl_name [{FROM | IN} db_name] [WHERE expr] SHOW INDEX returns table index ...The ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-tablespace-autoextend-size.html
When a file-per-table or general tablespace is created with a non-zero AUTOEXTEND_SIZE setting, the tablespace is initialized at the specified AUTOEXTEND_SIZE size. For tables created in file-per-table tablespaces, SHOW CREATE TABLE shows the ... By ...For information about extent size, see Section 17.11.2, “File Space ...
https://dev.mysql.com/doc/refman/8.0/en/replication-features-row-searches.html
The algorithm creates a hash table containing the rows in the UPDATE or DELETE operation, with the key as the full before-image of the row. When a replica using row-based replication format applies an UPDATE or DELETE operation, it must search the ...Any index where the before-image of the row event does not contain all the columns of the ...
https://dev.mysql.com/doc/refman/8.0/en/sys-schema-object-index.html
The following tables list sys schema objects and provide a short description of each one.
https://dev.mysql.com/doc/refman/8.0/en/uninstall-plugin.html
If you are uninstalling a plugin with no intention of reinstalling it later and you care about the table contents, you should dump the table with mysqldump and remove the WITH PARSER clause from the dumped CREATE TABLE statement so that you can ...
https://dev.mysql.com/doc/refman/8.0/en/alter-user.html
The latter corresponds to the type of value displayed by SHOW CREATE USER for password hashes containing unprintable characters when the print_identified_with_as_hex system variable is enabled. In most cases, ALTER USER requires the global CREATE ...
https://dev.mysql.com/doc/refman/8.0/en/cache-index.html
A key cache must exist before you assign indexes to it, or an error occurs: mysql> CACHE INDEX t1 IN non_existent_cache; ERROR 1284 (HY000): Unknown key cache 'non_existent_cache' By default, table indexes are assigned to the main (default) key ...| ...| tbl_name PARTITION (partition_list) } IN key_cache_name tbl_index_list: tbl_name [{INDEX|KEY} (index_name[, index_name] ...)] partition_list: { partition_name[, partition_name] ...
https://dev.mysql.com/doc/refman/8.0/en/charset-unicode-sets.html
Miscellaneous Information The xxx_general_mysql500_ci collations preserve the pre-5.1.24 ordering of the original xxx_general_ci collations and permit upgrades for tables created before MySQL 5.1.24 (Bug #27877). Beginning with MySQL 8.0.28, utf8mb3 ... This section describes the collations available for Unicode character sets and their differentiating ...