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https://dev.mysql.com/doc/refman/8.0/en/replication-features-timeout.html
The data also shows the number of retries for the last transaction and the transaction currently in progress, and enables you to identify the transient errors that caused the transactions to be retried. Transactions are automatically retried when ...
https://dev.mysql.com/doc/refman/8.0/en/char.html
For truncation of nonspace characters, you can cause an error to occur (rather than a warning) and suppress insertion of the value by using strict SQL mode. For those cases where trailing pad characters are stripped or comparisons ignore them, if a ... The CHAR and VARCHAR types are similar, but differ in the way they are stored and ...
https://dev.mysql.com/doc/refman/8.0/en/subquery-restrictions.html
The permitted syntax is therefore more specifically expressed as row_constructor [NOT] IN table_subquery For expr op {ALL|ANY|SOME} subquery, expr must be a scalar value and the subquery must be a column subquery; it cannot return multiple-column ...
https://dev.mysql.com/doc/refman/8.0/en/gone-away.html
This section also covers the related Lost connection to server during query error. The most common reason for the MySQL server has gone away error is that the server timed out and closed the connection. In this case, you normally get one of the ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-change-primary.html
If a standard source-to-replica replication channel is running on the existing primary member in addition to the Group Replication channels, you must stop that replication channel before you can change the primary member. Any uncommitted ... This ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-functions-for-new-primary.html
If a standard source to replica replication channel is running on the existing primary member in addition to the Group Replication channels, you must stop that replication channel before you can change the primary member. Any uncommitted ... The ...
https://dev.mysql.com/doc/refman/8.0/en/switchable-optimizations.html
Specifying any given opt_name more than once in the value is not permitted and causes an error. Any errors in the value cause the assignment to fail with an error, leaving the value of optimizer_switch unchanged. For batched_key_access to have any ...Its value is a set of flags, each of which has a value of on or off to indicate whether the corresponding optimizer behavior is enabled or ...
https://dev.mysql.com/doc/refman/8.0/en/keyring-component-plugin-comparison.html
A keyring component must be enabled on the MySQL server instance to support secure storage for persisted system variable values. The sensitive data that can be protected in this way includes items such as private keys and passwords that appear in ...
https://dev.mysql.com/doc/refman/8.0/en/perl-installation.html
If you install MySQL from RPM files on Linux, be sure to install the developer RPM as well. The files you need for Perl support can be obtained from the CPAN (Comprehensive Perl Archive Network) at http://search.cpan.org. Change location into the ...
https://dev.mysql.com/doc/refman/8.0/en/updating-yum-repo.html
For supported Yum-based platforms (see Section 2.5.1, “Installing MySQL on Linux Using the MySQL Yum Repository”, for a list), you can perform an in-place upgrade for MySQL (that is, replacing the old version and then running the new version ...