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https://dev.mysql.com/doc/workbench/en/wb-mysql-connections-navigator-management-client-connections.html
Sometimes a query might be blocked while being manipulated by another connection from another user. The client connection browser lists the active and sleeping MySQL client connections, and adds the ability to kill statements and connections, and ...
https://dev.mysql.com/doc/connectors/en/connector-j-connp-props-metadata.html
getProceduresReturnsFunctions Pre-JDBC4 'DatabaseMetaData' API has only the 'getProcedures()' and 'getProcedureColumns()' methods, so they return metadata info for both stored procedures and functions. JDBC4 was extended with the 'getFunctions()' ...
https://dev.mysql.com/doc/internals/en/additional-accessors-for-plugins.html
Starting with MySQL 5.1.21 the following additional accessors are made available to all plug-ins: Full definition of MYSQL_LEX_STRING (identical to LEX_STRING from m_string.h) Full definition of MYSQL_XID (binary compatible with XID from handler.h) ...
https://dev.mysql.com/doc/internals/en/custom-engine-source-files.html
The easiest way to implement a new storage engine is to begin by copying and modifying the EXAMPLE storage engine. The files ha_example.cc and ha_example.h can be found in the storage/example directory of the MySQL 5.1 source tree. For instructions ...
https://dev.mysql.com/doc/internals/en/guided-tour.html
What we're about to do in this section is pick up the latest copy of the MySQL source code off the Internet. Then we'll get a list of the directories and comment on why they're there. Next we'll open up some of the files that are vital to MySQL's ...
https://dev.mysql.com/doc/internals/en/myisampack.html
When starting to analyze the existing uncompressed data, it collects distinct column values up to a limit of 8KB. If there are more, it falls back to byte value compression for this column. This means also that myisampack may use different ...
https://dev.mysql.com/doc/internals/en/optimizer-code.html
This diagram shows the structure of the function handle_select() in /sql/sql_select.cc (the server code that handles a query): handle_select() mysql_select() JOIN::prepare() setup_fields() JOIN::optimize() /* optimizer is from here ... */ ...
https://dev.mysql.com/doc/internals/en/records-in-range.html
Purpose For the given range how many records are estimated to be in this range. Synopsis virtual ha_rows records_in_range ( inx, min_key, max_key); uint inx ; key_range * min_key ; key_range * max_key ; Description This is the records_in_range ...
https://dev.mysql.com/doc/ndbapi/en/ndb-classes.html
This section provides a detailed listing of all classes, interfaces, and stuctures defined in the NDB API. Each listing includes the following information: Description and purpose of the class, interface, or structure. Detailed listings of all ...
https://dev.mysql.com/doc/connectors/en/connector-j-usagenotes-j2ee-concepts-load-balancing-failover.html
return (ex.getMessage().startsWith("Lock wait timeout exceeded") || (ex.getMessage().startsWith("Got temporary error") && ex.getMessage().endsWith("from NDB"))); } } The code above extends com.mysql.cj.jdbc.ha.StandardLoadBalanceExceptionChecker, ...