Search Results
https://dev.mysql.com/doc/internals/en/starting-transaction-from-external-lock-method.html
MySQL calls [custom-engine.html#custom-engine-api-reference-external_lock handler::external_lock()] for every table it is going to use at the beginning of every statement. Thus, if a table is touched for the first time, it implicitly starts a ...
https://dev.mysql.com/doc/internals/en/starting-transaction-from-start-stmt-call.html
The first method call that can start a transaction is the [custom-engine.html#custom-engine-transactions-starting-start-stmt start_stmt()] method. It holds state relevant data for the current client, such as identity, network connection and other ...
https://dev.mysql.com/doc/internals/en/stored-programs.html
The content formerly located in this chapter is now maintained in the Stored Programs section of the MySQL Server Doxygen documentation, available at https://dev.mysql.com/doc/index-other.html.
https://dev.mysql.com/doc/internals/en/support-for-delete.html
For non-indexed storage engines the parameter can be ignored, but transactional storage engines may need to store the deleted data for rollback purposes. The following example is from the CSV storage engine: int ha_tina::delete_row(const byte * buf) ...
https://dev.mysql.com/doc/internals/en/support-for-insert.html
Once you have read support in your storage engine, the next feature to implement is support for INSERT statements. With INSERT support in place, your storage engine can handle WORM (write once, read many) applications such as logging and archiving ...
https://dev.mysql.com/doc/internals/en/support-for-update.html
Performing an update will depend on row format and storage implementation. Some storage engines will replace data in-place, while other implementations delete the existing row and append the new row at the end of the data file. Non-indexed storage ...
https://dev.mysql.com/doc/internals/en/write-row.html
Synopsis virtual int write_row ( buf); byte * buf ; Description This is the write_row method. No [custom-engine.html#custom-engine-api-reference-extra extra()] hint is given currently if a bulk load is happening. buf is a byte array of data with a ...
https://dev.mysql.com/doc/internals/en/zlib-directory.html
zlib is a data compression library used to support the compressed protocol and the COMPRESS/UNCOMPRESS functions under Windows. On Unix, MySQL uses the system libgz.a library for this purpose. Zlib --- which presumably stands for "Zip Library" --- ...
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-compliance-administration-standard-rules.html
The binary log enables point-in-time recovery, preventing data loss during a disaster recovery situation. It also enables you to review all alterations made to your database. When enabled, it causes a MySQL server to write informational log events ...
https://dev.mysql.com/doc/mysql-monitor/8.0/en/mem-config-properties-file-location.html
File location The repository user name and encrypted password are stored in the config.properties file. Usage The following examples shows a generated config.properties file: #SymmetricKey was auto generated. #Thu Aug 15 13:35:56 PDT 2013 ...