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https://dev.mysql.com/doc/refman/8.0/en/date-and-time-type-syntax.html
The date and time data types for representing temporal values are DATE, TIME, DATETIME, TIMESTAMP, and YEAR. MySQL permits fractional seconds for TIME, DATETIME, and TIMESTAMP values, with up to microseconds (6 digits) precision. To define a column ...For the DATE and DATETIME range descriptions, “supported” means that although earlier values might work, there is no ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-replication-applier-status-by-worker-table.html
When the Performance Schema is disabled, local timing information is not collected, so the fields showing the start and end timestamps for applied transactions are zero. The start timestamps in this table refer to when the worker started applying ...
https://dev.mysql.com/doc/refman/8.0/en/audit-log-reference.html
The position is given as a timestamp and the read starts from the first event that occurs on or after the timestamp value. The start item has this format, where value is a literal timestamp value: "start": { "timestamp": "value" } The start item is ...Unless those objects are installed, the audit_log plugin operates in legacy mode (deprecated in MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-nutshell.html
Such implicit casts are now performed between temporal types (DATE, DATETIME, TIMESTAMP, TIME) and numeric types (SMALLINT, TINYINT, MEDIUMINT, INT/INTEGER, BIGINT; DECIMAL/NUMERIC; FLOAT, DOUBLE, REAL; BIT) whenever they are compared using any of ... This section summarizes what has been added to, deprecated in, and removed from MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-replication-applier-status-by-coordinator-table.html
The start timestamp refers to when this thread read the first event of the transaction from the relay log to buffer it to a worker’s queue, while the end timestamp refers to when the last event finished buffering to the worker’s queue. For a ...
https://dev.mysql.com/doc/refman/8.0/en/replication-delayed.html
In MySQL 8.0, the method of delaying replication depends on two timestamps, immediate_commit_timestamp and original_commit_timestamp (see Replication Delay Timestamps). If all servers in the replication topology are running MySQL 8.0 or above, ...
https://dev.mysql.com/doc/refman/8.0/en/show-replica-status.html
Seconds_Behind_Source This field is an indication of how “late” the replica is: When the replica is actively processing updates, this field shows the difference between the current timestamp on the replica and the original timestamp logged on ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-replication-connection-status-table.html
LAST_ERROR_TIMESTAMP A timestamp in 'YYYY-MM-DD hh:mm:ss[.fraction]' format that shows when the most recent I/O error took place. LAST_HEARTBEAT_TIMESTAMP A timestamp in 'YYYY-MM-DD hh:mm:ss[.fraction]' format that shows when the most recent ...
https://dev.mysql.com/doc/refman/8.0/en/create-event.html
CREATE [DEFINER = user] EVENT [IF NOT EXISTS] event_name ON SCHEDULE schedule [ON COMPLETION [NOT] PRESERVE] [ENABLE | DISABLE | DISABLE ON SLAVE] [COMMENT 'string'] DO event_body; schedule: { AT timestamp [+ INTERVAL interval] ... This is an ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-what-is-new.html
Previously, analysis of NDB Cluster data node and management node logs could be hampered by the fact that different log messages used different formats, and that not all log messages included timestamps. We fix these problems by standardizing on the ... The following sections describe changes in the implementation of MySQL NDB Cluster in NDB Cluster 8.0 through 8.0.42, as compared to earlier release ...