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https://dev.mysql.com/doc/refman/8.0/en/replication-features-transactions.html
In general, you should avoid transactions that update both transactional and nontransactional tables in a replication environment. You should also avoid using any statement that accesses both transactional (or temporary) and nontransactional tables ...The server uses these rules for binary logging: If the initial statements in a transaction are nontransactional, they are written to the binary log ...
https://dev.mysql.com/doc/refman/8.0/en/replace.html
For information about generated columns, see Section 15.1.20.8, “CREATE TABLE and Generated Columns”. | TABLE table_name} value: {expr | DEFAULT} value_list: value [, value] ... REPLACE works exactly like INSERT, except that if an old row in the ... REPLACE [LOW_PRIORITY | DELAYED] [INTO] tbl_name [PARTITION (partition_name [, partition_name] ...)] [(col_name [, col_name] ...)] { {VALUES | VALUE} (value_list) [, (value_list)] ...
https://dev.mysql.com/doc/refman/8.0/en/view-restrictions.html
The maximum number of tables that can be referenced in the definition of a view is 61. View processing is not optimized: It is not possible to create an index on a view. However, a view that is processed with the temptable algorithm is unable to ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-buffer-page-table.html
The INNODB_BUFFER_PAGE table provides information about each page in the InnoDB buffer pool. For related usage information and examples, see Section 17.15.5, “InnoDB INFORMATION_SCHEMA Buffer Pool Tables”. Do not query this table on a ...To ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-status-variable-tables.html
Status variable information is available in these Performance Schema tables: global_status: Global status variables. An application that wants only global values should use this table. An application that wants all status variable values for its own ... The MySQL server maintains many status variables that provide information about its operation (see Section 7.1.10, “Server Status ...
https://dev.mysql.com/doc/refman/8.0/en/where-optimization.html
If there is an ORDER BY clause and a different GROUP BY clause, or if the ORDER BY or GROUP BY contains columns from tables other than the first table in the join queue, a temporary table is created. COUNT(*) on a single table without a WHERE is ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-ft-config-table.html
use_stopword: Indicates whether a stopword table is used, which is defined when the FULLTEXT index is created. The INNODB_FT_CONFIG table provides metadata about the FULLTEXT index and associated processing for an InnoDB table. Before querying it, ...The values for this column might change, depending on the needs for performance tuning and debugging for InnoDB full-text ...
https://dev.mysql.com/doc/refman/8.0/en/optimizing-innodb-bulk-data-loading.html
COMMIT; The mysqldump option --opt creates dump files that are fast to import into an InnoDB table, even without wrapping them with the SET autocommit and COMMIT statements. For optimal performance when loading data into an InnoDB FULLTEXT index, ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-temporary-tablespace.html
Session Temporary Tablespaces Session temporary tablespaces store user-created temporary tables and internal temporary tables created by the optimizer when InnoDB is configured as the storage engine for on-disk internal temporary tables. InnoDB ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-performance-schema.html
For example, you should know how enable instruments and consumers, and how to query performance_schema tables to retrieve data. To view InnoDB-related instruments, you can query the setup_instruments table for instrument names that contain 'innodb'.