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Set the time for this client. This is used to get the original timestamp if you use the binary log to restore rows. timestamp_value  should be a Unix epoch timestamp (a value like that returned by UNIX_TIMESTAMP() , not a value in ’ YYYY-MM-DD hh:mm:ss ’  format) or DEFAULT . 

Setting timestamp  to a constant value causes it to retain that value until it is changed again. Setting timestamp  to DEFAULT  causes its value to be the current date and time as of the time it is accessed. 

timestamp  is a DOUBLE  rather than BIGINT  because its value includes a microseconds part. The maximum value corresponds to ’2038-01-19 03:14:07’  UTC, the same as for the TIMESTAMP  data type. 

SET timestamp  affects the value returned by NOW()  but not by SYSDATE() . This means that timestamp settings in the binary log have no effect on invocations of SYSDATE() . The server can be started with the --sysdate-is-now  option to cause SYSDATE()  to be a synonym for NOW() , in which case SET timestamp  affects both functions. 

• tls_ciphersuites 

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Which ciphersuites the server permits for encrypted connections that use TLSv1.3. The value is a list of zero or more colon-separated ciphersuite names. 

The ciphersuites that can be named for this variable depend on the SSL library used to compile MySQL. If this variable is not set, its default value is NULL , which means that the server permits the default set of ciphersuites. If the variable is set to the empty string, no ciphersuites are enabled and encrypted connections cannot be established. For more information, see Section 6.3.2, “Encrypted Connection TLS Protocols and Ciphers” . 

• tls_version 

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