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https://dev.mysql.com/doc/refman/8.0/en/problems-with-null.html
Under certain conditions, if you insert NULL into a TIMESTAMP column, the current date and time is inserted; this behavior depends in part on the server SQL mode (see Section 7.1.11, “Server SQL Modes”) as well as the value of the ... The ...
https://dev.mysql.com/doc/refman/8.0/en/query-log.html
The log_timestamps system variable controls the time zone of timestamps in messages written to the general query log file (as well as to the slow query log file and the error log). The general query log is a general record of what mysqld is doing.
https://dev.mysql.com/doc/refman/8.0/en/repair-table.html
Table Repair Considerations REPAIR TABLE upgrades a table if it contains old temporal columns in pre-5.6.4 format (TIME, DATETIME, and TIMESTAMP columns without support for fractional seconds precision) and the avoid_temporal_upgrade system variable ...[QUICK] [EXTENDED] [USE_FRM] REPAIR TABLE repairs a possibly corrupted table, for certain storage engines ...
https://dev.mysql.com/doc/refman/8.0/en/replication-administration-status.html
This is especially likely when the events have old timestamps; in such cases, if you execute SHOW REPLICA STATUS several times in a relatively short period, you may see this value change back and forth repeatedly between 0 and a relatively large ...
https://dev.mysql.com/doc/refman/8.0/en/replication-features-auto-increment.html
Statement-based replication of AUTO_INCREMENT, LAST_INSERT_ID(), and TIMESTAMP values is carried out subject to the following exceptions: A statement invoking a trigger or function that causes an update to an AUTO_INCREMENT column is not replicated ...(Bug #45677) An INSERT into a table that has a composite primary key that includes an AUTO_INCREMENT column that is not the first column of this composite key is not safe for statement-based logging or ...
https://dev.mysql.com/doc/refman/8.0/en/replication-features-fractional-seconds.html
MySQL 8.0 permits fractional seconds for TIME, DATETIME, and TIMESTAMP values, with up to microseconds (6 digits) precision.
https://dev.mysql.com/doc/refman/8.0/en/replication-features-timeout.html
This data includes timestamps showing how long it took the applier thread to apply the last transaction from start to finish (and when the transaction currently in progress was started), and how long this was after the commit on the original source ... The global value of the system variable replica_transaction_retries (from MySQL 8.0.26) or slave_transaction_retries (before MySQL 8.0.26) sets the maximum number of times for applier threads on a single-threaded or multithreaded replica to automatically retry failed transactions before ...
https://dev.mysql.com/doc/refman/8.0/en/replication-features-variables.html
sql_mode is also replicated except for the NO_DIR_IN_CREATE mode; the replica always preserves its own value for NO_DIR_IN_CREATE, regardless of changes to it on the source. However, when mysqlbinlog parses a SET @@sql_mode = mode statement, the ...
https://dev.mysql.com/doc/refman/8.0/en/server-option-variable-reference.html
The following table lists all command-line options, system variables, and status variables applicable within mysqld. The table lists command-line options (Cmd-line), options valid in configuration files (Option file), server system variables ...
https://dev.mysql.com/doc/refman/8.0/en/server-options.html
For information about the implications for binary logging and replication, see the description for SYSDATE() in Section 14.7, “Date and Time Functions” and for SET TIMESTAMP in Section 7.1.8, “Server System Variables”. When you start the ...