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/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/relnotes/connector-cpp/en/news-8-0-24.html
Typically, the client would see Lost connection to MySQL server during query (CR_SERVER_LOST) or MySQL server has gone away (CR_SERVER_GONE_ERROR). In such cases, the server now writes the reason to the connection before closing it, and client ...
https://dev.mysql.com/doc/relnotes/connector-cpp/en/news-8-0-28.html
Deprecation and Removal Notes Pluggable Authentication Security Notes Bugs Fixed Deprecation and Removal Notes The TLSv1 and TLSv1.1 connection protocols were deprecated in Connector/C++ 8.0.26 and now are removed in this release. The removed ...
https://dev.mysql.com/doc/relnotes/connector-cpp/en/news-8-0-31.html
Compilation Notes Configuration Notes Security Notes Functionality Added or Changed Bugs Fixed Compilation Notes Connector/C++ now compiles cleanly using Clang for Linux and Solaris. (WL #15065) Configuration Notes Several CMake options have been ...