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SET sql_log_bin = {OFF|ON}

The sql_log_bin variable controls whether logging to the binary log is
enabled for the current session (assuming that the binary log itself is
enabled). The default value is ON. To disable or enable binary logging
for the current session, set the session sql_log_bin variable to OFF or

Set this variable to OFF for a session to temporarily disable binary
logging while making changes to the source that you do not want
replicated to the replica.

Setting the session value of this system variable is a restricted
operation. The session user must have privileges sufficient to set
restricted session variables. See

It is not possible to set the session value of sql_log_bin within a
transaction or subquery.

Setting this variable to OFF prevents new GTIDs from being assigned to
transactions in the binary log. If you are using GTIDs for replication,
this means that even when binary logging is later enabled again, the
GTIDs written into the log from this point do not account for any
transactions that occurred in the meantime, so in effect those
transactions are lost.

mysqldump adds a SET @@SESSION.sql_log_bin=0 statement to a dump file
from a server where GTIDs are in use, which disables binary logging
while the dump file is being reloaded. The statement prevents new GTIDs
from being generated and assigned to the transactions in the dump file
as they are executed, so that the original GTIDs for the transactions
are used.



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