Other storage engines may be available from third parties and community members that have used the Custom Storage Engine interface. Third party engines are not supported by MySQL. For further information, documentation, installation guides, bug reporting or for any help or assistance with these engine...
Storage engine interfaceThe performance schema engine, ha_perfschema, exposes performance schema tables to the MySQL server. Tables are implemented by sub classing PFS_engine_table.The access pattern is always the same for all performance schema tables, and does not depend on what data is exposed...
Other storage engines may be available from third parties and community members that have used the Custom Storage Engine interface. Third party engines are not supported by MySQL. For further information, documentation, installation guides, bug reporting or for any help or assistance with these engine...
18.10 Other Storage Engines Other storage engines may be available from third parties and community members that have used the Custom Storage Engine interface. Third party engines are not supported by MySQL. For further information, documentation, installation guides, bug reporting or for any help or...
SQL Interface : MySQL支持DML(数据操作语言)、DDL(数据定义语言)、存储过程、视图、触发器、自定义函数等多种SQL语言接口。 Parser : 解析SQL查询,并为其创建语法树,并根据数据字典丰富查询语法树,会验证该客户端是否具有执行该查询的权限. Optimizer : 语法解析和查询重写之后,MySQL会根据语法树和数据的统计信息对...
1、插件类型(Plugin Types): MySQL 支持多种类型的插件,包括存储引擎插件(Storage Engine Plugins)、插件函数(Plugin Functions)、认证插件(Authentication Plugins)和插件插件(Plugin Plugins)等。不同类型的插件可以为 MySQL 提供不同的功能和特性。2、插件接口(Plugin Interface): MySQL 提供了一组标准的...
具体来说,当用户提交一个SQL命令时如select*from tb_user,这个命令首先会被送到SQL Interface模块。然后,SQL Interface会根据这个命令的内容对其进行分类和解释。如果这个命令是一个SELECT语句,那么SQL Interface就会将其转发到查询缓存或解析器模块;如果这是一个INSERT、UPDATE或DELETE等数据修改语句,那么SQL ...
SQL Interface: SQL接口 接受用户的 SQL 命令,并且返回用户需要查询的结果。比如 select A from B 就是调用 SQL Interface。 在MySQL中我们习惯将所有 Client 端发送给 Server 端的命令都称为 query ,在 MySQL Server 里面,连接线程接收到客户端的一个 Query 后,会直接将该 query 传递给专门负责将各种 Query ...
连接建立:客户端向 MySQL 服务器发送一条查询请求,与 Connectors 交互,进行身份认证、连接分配等操作。如验证通过,会暂时存放在连接池中并由Management Serveices & Utilities 管理。当该请求从等待队列进入到处理队列,管理器会将该请求传递给 SQL Interface 查询缓存:SQL Interface 接收到请求后,首先对请求进行 hash ...
daemon_example.ini libtest_services_threaded.so libtest_sql_complex.so libtest_sql_views_triggers.so qa_auth_interface.so test_udf_services.so group_replication.so libtest_session_detach.so libtest_sql_errors.so libtest_x_sessions_deinit.so qa_auth_server.so validate_password.so ...