https://dev.mysql.com/mysql-session-track-get-first.html
Following a successful call, this variable points to the returned data, which should be considered read only. Following a successful call, this variable contains the length of the data pointed to by the data parameter. A client must subscribe to the ... int mysql_session_track_get_first(MYSQL *mysql, enum enum_session_state_type type, const char **data, size_t *length) MySQL implements a session tracker mechanism whereby the server returns information about session state changes to ...
https://dev.mysql.com/numeric-type-attributes.html
For example, if an INT column is UNSIGNED, the size of the column's range is the same but its endpoints shift up, from -2147483648 and 2147483647 to 0 and 4294967295. MySQL supports an extension for optionally specifying the display width of ...
https://dev.mysql.com/precision-math-decimal-characteristics.html
D is the number of digits to the right of the decimal point (the scale). Leftover Digits Number of Bytes 0 0 1–2 1 3–4 2 5–6 3 7–9 4 For example, a DECIMAL(18,9) column has nine digits on either side of the decimal point, so the integer part ... This section discusses the characteristics of the DECIMAL data type (and its synonyms), with particular regard to the following topics: Maximum number of digits Storage format Storage requirements The nonstandard MySQL extension to the upper range of DECIMAL columns The declaration syntax for a DECIMAL column is ...
https://dev.mysql.com/precision-math-expressions.html
(If strict SQL mode is not enabled, truncation for INSERT is permissible.) Handling of a numeric expression depends on what kind of values the expression contains: If any approximate values are present, the expression is approximate and is evaluated ... With precision math, exact-value numbers are used as given whenever ...
https://dev.mysql.com/replication-gtids-howto.html
Binary logs containing transactions without GTIDs cannot be used on servers where GTIDs are enabled, so backups taken before this point cannot be used with your new configuration. If you use binary logs for anything other than replication, for ...
https://dev.mysql.com/replication-mode-change-online-disable-gtids.html
The only thing that differs is the point at which you wait for logged transactions to replicate. If you use binary logs for anything else than replication, for example to do point in time backup or restore: wait until you do not need the old binary ... This section describes how to disable GTID transactions on servers that are already ...
https://dev.mysql.com/server-options.html
To enable it, specify a value greater than 0; this value also becomes the default timeout for individual synchronization points. For a description of the Debug Sync facility and how to use synchronization points, see MySQL Internals: Test ... When ...
https://dev.mysql.com/source-configuration-options.html
(The default value is 0, which disables Debug Sync.) N becomes the default timeout for individual synchronization points. For a description of the Debug Sync facility and how to use synchronization points, see MySQL Internals: Test Synchronization.
https://dev.mysql.com/spatial-type-overview.html
Some spatial data types hold single geometry values: GEOMETRY POINT LINESTRING POLYGON GEOMETRY can store geometry values of any type. The other single-value types (POINT, LINESTRING, and POLYGON) restrict their values to a particular geometry type.
https://dev.mysql.com/writing-information-schema-plugins.html
The array pointed to by fields_info should contain one element per column of the INFORMATION_SCHEMA plus a terminating element. This section describes how to write a server-side INFORMATION_SCHEMA table plugin. For example code that implements such ...
