https://dev.mysql.com/replication-options-reference.html
The following two lists provide basic information about the MySQL command-line options and system variables applicable to replication and the binary log. The command-line options and system variables in the following list relate to replication ...
https://dev.mysql.com/mysql-cluster-shm-definition.html
ShmSpinTime Table 22.318 This table provides type and value information for the ShmSpinTime shared memory configuration parameter Property Value Version (or later) NDB 8.0.13 Type or units integer Default 0 Range 0 - 2000 Restart Type S When ...
https://dev.mysql.com/time.html
MySQL recognizes TIME values in several formats, some of which can include a trailing fractional seconds part in up to microseconds (6 digits) precision. MySQL retrieves and displays TIME values in 'hh:mm:ss' format (or 'hhh:mm:ss' format for large ...
https://dev.mysql.com/c-api-prepared-statement-data-structures.html
Prepared statements use several data structures: To obtain a statement handler, pass a MYSQL connection handler to mysql_stmt_init(), which returns a pointer to a MYSQL_STMT data structure. To specify the statement to prepare, pass the MYSQL_STMT ...
https://dev.mysql.com/innodb-cmpmem-table.html
RELOCATION_TIME The total time in microseconds used for relocating blocks of size PAGE_SIZE. The INNODB_CMPMEM and INNODB_CMPMEM_RESET tables provide status information on compressed pages within the InnoDB buffer pool. The INNODB_CMPMEM and ...
https://dev.mysql.com/slow-query-log.html
The slow query log consists of SQL statements that take more than long_query_time seconds to execute and require at least min_examined_row_limit rows to be examined. The slow query log can be used to find queries that take a long time to execute ...
https://dev.mysql.com/events-statements-current-table.html
This value is computed in microseconds but normalized to picoseconds for easier comparison with other Performance Schema timers. The table stores one row per thread showing the current status of the thread's most recent monitored statement event, so ...
