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https://dev.mysql.com/doc/internals/en/dbug-sleep.html
In cases where the normal server code does not have a block point at the critical place, one can insert an artificial synchronization point. open_tables(...) DBUG_EXECUTE_IF("sleep_open_and_lock_after_open", { const char *old_proc_info= ...
https://dev.mysql.com/doc/internals/en/differences-master-slave.html
Any intermediate state of the slave is identical to some intermediate state of the master. Note: it is not required that each intermediate state of the master is identical to some intermediate state of the slave. We now state the architectural ...
https://dev.mysql.com/doc/ndbapi/en/overview-ndb-classes.html
The NDB API is an NDB Cluster application interface that implements transactions. It consists of the following fundamental classes: Ndb_cluster_connection represents a connection to a cluster. Ndb is the main class, and represents a connection to a ...
https://dev.mysql.com/doc/workbench/en/wb-preferences-others.html
The following figure shows the preference options that apply to general items, such as the home screen and logs. Figure 3.18 Preferences: Others Home Screen Show Welcome Message on Connections Screen Enabled by default. This option displays or ...
https://dev.mysql.com/doc/x-devapi-userguide-shell-js/en/creating-documents.html
Once a collection has been created, it can store JSON documents. You store documents by passing a JSON data structure to the Collection.add() function. Some languages have direct support for JSON data, others have an equivalent syntax to represent ...
https://dev.mysql.com/doc/x-devapi-userguide-shell-python/en/creating-documents.html
Once a collection has been created, it can store JSON documents. You store documents by passing a JSON data structure to the Collection.add() function. Some languages have direct support for JSON data, others have an equivalent syntax to represent ...
https://dev.mysql.com/doc/workbench/en/wb-preferences-administration.html
This section provides configuration options that affect the administration functionality in MySQL Workbench (see the figure that follows). Figure 3.10 Preferences: Administration Data Export and Import Path to mysqldump Tool: [ blank ] Path to your ...
https://dev.mysql.com/doc/refman/8.4/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/internals/en/optimizer-or-relations.html
An ORed search has the form condition1 OR condition2, as in this example: WHERE column1 = 'x' OR column2 = 'y' Here the optimizer's decision is to use a sequential scan. There is also an option to use index merge under such circumstances. See ...
https://dev.mysql.com/doc/connectors/en/connector-net-using-character-sets.html
Treating Binary Blobs As UTF8 Before the introduction of 4-byte UTF-8 character set, MySQL did not support 4-byte UTF8 sequences. This makes it difficult to represent some multibyte languages such as Japanese. To try and alleviate this, MySQL ...