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https://dev.mysql.com/doc/refman/8.0/en/storage-engines.html
InnoDB is a transaction-safe (ACID compliant) storage engine for MySQL that has commit, rollback, and crash-recovery capabilities to protect user data. Storage engines are MySQL components that handle the SQL operations for different table types.
https://dev.mysql.com/doc/refman/8.0/en/xa-restrictions.html
The events_transactions_current table displays the current status of the most recent monitored transaction event on the thread, and does not update this status when the thread is idle. If two XA transactions committed in parallel on the source are ... XA transaction support is limited to the InnoDB storage ...
https://dev.mysql.com/doc/refman/8.0/en/fulltext-search-mecab.html
MeCab Parser Term Search For natural language mode search, the search term is converted to a union of tokens. SELECT COUNT(*) FROM articles WHERE MATCH(title,body) AGAINST('データベース管理' IN NATURAL LANGUAGE MODE); For boolean mode ...
https://dev.mysql.com/doc/refman/8.0/en/fulltext-search.html
MATCH (col1,col2,...) AGAINST (expr [search_modifier]) search_modifier: { IN NATURAL LANGUAGE MODE | IN NATURAL LANGUAGE MODE WITH QUERY EXPANSION | IN BOOLEAN MODE | WITH QUERY EXPANSION } MySQL has support for full-text indexing and searching: A ...Full-text indexes can be used only with InnoDB or MyISAM tables, and can be created only for CHAR, VARCHAR, or TEXT ...
https://dev.mysql.com/doc/refman/8.0/en/function-resolution.html
These rules can be changed by enabling the IGNORE_SPACE SQL mode. The IGNORE_SPACE SQL mode can be used to modify how the parser treats function names that are whitespace-sensitive: With IGNORE_SPACE disabled, the parser interprets the name as a ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-functions.html
The functions described in the following sections are used with Group Replication.
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-transaction-summary-tables.html
The transaction access mode specifies whether transactions operate in read/write or read-only mode. The transaction access mode specifies whether transactions operate in read/write or read-only mode. Transaction Aggregation Rules Transaction event ... The Performance Schema maintains tables for collecting current and recent transaction events, and aggregates that information in summary ...
https://dev.mysql.com/doc/refman/8.0/en/precision-math-examples.html
In strict mode, inserting a value that is out of range for a column causes an error, rather than truncation to a legal value. This section provides some examples that show precision math query results in MySQL. These examples demonstrate the ...
https://dev.mysql.com/doc/refman/8.0/en/replication-mode-change-online-enable-gtids.html
On each server, execute: SET @@GLOBAL.ENFORCE_GTID_CONSISTENCY = ON; On each server, execute: SET @@GLOBAL.GTID_MODE = OFF_PERMISSIVE; It does not matter which server executes this statement first, but it is important that all servers complete this ... This section describes how to enable GTID transactions, and optionally auto-positioning, on servers that are already online and using anonymous ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-limitations-transactions.html
LOCK IN SHARE MODE causes shared row locks to be used; FOR UPDATE causes exclusive row locks to be used. When a row referenced by a unique index in the user-created NDB table is updated, the hidden index table is subject to an exclusive lock by the ... A number of limitations exist in NDB Cluster with regard to the handling of ...