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https://dev.mysql.com/doc/internals/en/mysql-packet.html
If a MySQL client or server wants to send data, it: Splits the data into packets of size (224−1) bytes Prepends to each chunk a packet header Protocol::Packet Data between client and server is exchanged in packets of max 16MByte size. The number ...
https://dev.mysql.com/doc/internals/en/select-select-result.html
This class has a very important role in SELECT performance with select_result class and classes inherited from it (usually called with a select_ prefix). The key methods in this class are the following: send_fields sends given item list headers ...
https://dev.mysql.com/doc/internals/en/system-variables-controlling-trace.html
A brief overview from "mysqld --verbose --help": --optimizer-trace=name Controls tracing of the Optimizer: --optimizer-trace-features=name Enables/disables tracing of selected features of the Optimizer: ...
https://dev.mysql.com/doc/internals/en/windows-native-authentication.html
Authentication::WindowsAuth: Name authentication_windows_client Requires CLIENT_PLUGIN_AUTH The Windows Native Authentication method is more complex than the other methods and extends the auth protocol as it has to send more data forth and back ...
https://dev.mysql.com/doc/internals/en/x-protocol-comparison-comparison-to-mysql-c-s-protocol.html
Feature MySQL C/S protocol X Protocol plaintext auth ✓ ✓ via SASL extentisible auth ✓ (5.6) ✓ via SASL TLS extension ✓ ✓ max message size >= 1Gb ✓ ✓ compression extension ✓ ✕ resettable sessions COM_RESET_CONNECTION Reset ...
https://dev.mysql.com/doc/internals/en/x-protocol-messages-messages.html
Tip The protobuf encoding of primitive data types is described in https://developers.google.com/protocol-buffers/docs/encoding SINT .length Maximum number of displayable decimal digits (including minus sign) of the type. SQL Type Maximum Digits per ... Topics in this section: Message Structure Message Sequence Common Messages Connection Session Expectations CRUD SQL Result Sets Expressions Data Types This section provides detailed information about how X Protocol defines ...
https://dev.mysql.com/doc/mysqld-version-reference/en/built-in-functions.html
The following table shows all built-in functions and operators available in MySQL Server. Introduced: The version or versions in which the item was introduced. Deprecated: The version or versions in which the item was deprecated. Removed: The ...
https://dev.mysql.com/doc/ndbapi/en/mccj-using-clusterj-start.html
For this, you use the SessionFactory's getSession() method, as shown here: SessionFactory factory = ClusterJHelper.getSessionFactory(props); Session session = factory.getSession(); It is usually sufficient to set and load the ... In this section, we ...
https://dev.mysql.com/doc/ndbapi/en/ndb-error-codes-application-error.html
The following list enumerates all NDB errors of type AE (Application error). Having a table without primary key uses an autoincremented hidden key, i.e. NDB error code 5002 MySQL error DMEC Error message The process has wrong type. NDB error code ...
https://dev.mysql.com/doc/ndbapi/en/ndb-error-codes-single.html
Table fragment fixed data reference has reached maximum possible value (specify MAXROWS or increase no of partitions) 1604 MySQL error. Out of operation records in transaction coordinator (increase MaxNoOfConcurrentOperations) 238 MySQL error. DML ... This section lists all NDB errors, ordered by NDB error ...