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https://dev.mysql.com/doc/internals/en/implementing-rnd-pos-method.html
The [custom-engine.html#custom-engine-api-reference-rnd_pos rnd_pos()] method behaves in a similar fashion to the rnd_next() method but takes an additional parameter: int ha_foo::rnd_pos(byte * buf, byte *pos) The *pos parameter contains ...
https://dev.mysql.com/doc/internals/en/index-first.html
Synopsis virtual int index_first ( buf); byte * buf ; Description This is the index_first method.
https://dev.mysql.com/doc/internals/en/index-read-idx.html
Purpose Find a row based on a key and return. Synopsis virtual int index_read_idx ( buf, index, key, keypart_map, find_flag); byte * buf ; uint index ; const byte * key ; ulonglong keypart_map ; enum ha_rkey_function find_flag ; Description This is ...
https://dev.mysql.com/doc/internals/en/interface-to-third-party-tools.html
Previously, third-party tools that need to determine the MySQL version from the MySQL source read the configure.in file in the top-level source directory. For example, the AC_INIT line for MySQL 5.5.7-rc looked like this: AC_INIT([MySQL Server], ...
https://dev.mysql.com/doc/internals/en/memory-allocation-library-or-storage-engine.html
For the simple case, use the functions in mysys/my_malloc.c: void *my_malloc(size_t size, myf my_flags); void *my_memdup(const void *from, size_t length, myf my_flags); char *my_strdup(const char *from, myf my_flags); char *my_strndup(const char ...
https://dev.mysql.com/doc/internals/en/new-authentication-method-not-known-by-client.html
Even if client supports external authentication (CLIENT_PLUGIN_AUTH flag is set) the new authentication method indicated in the Authentication Method Switch Request Packet might be not know to it. the client connecting to the server the server ...
https://dev.mysql.com/doc/internals/en/nicely-displaying-trace.html
Looking at a trace in the mysql command-line client can be cumbersome (though the pager less command makes it better). An alternative can be to send the trace to a file: SELECT TRACE INTO DUMPFILE <filename> FROM INFORMATION_SCHEMA.OPTIMIZER_TRACE; ...
https://dev.mysql.com/doc/internals/en/non-client-plugin-auth-clients.html
The only situation where server will request authentication method change from a client which does not set CLIENT_PLUGIN_AUTH flag is when the following conditions hold: the client connects to an account which uses Old Password Authentication. the ...
https://dev.mysql.com/doc/internals/en/ntlm.html
Note removed in Windows Vista and 2008: http://msdn.microsoft.com/en-us/library/aa480152.aspx#appcomp_topic16 Note documented in http://msdn.microsoft.com/en-us/library/cc207842.aspx Image description .
https://dev.mysql.com/doc/internals/en/optimizer-and-relations.html
An ANDed search has the form condition1 AND condition2, as in this example: WHERE column1 = 'x' AND column2 = 'y' Here, the optimizer's decision process can be described as follows: If (neither condition is indexed) use sequential scan. Otherwise, ...