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https://dev.mysql.com/doc/refman/8.0/en/charset-conversion.html
Note ALTER TABLE statements which make changes in table or column character sets or collations must be performed using ALGORITHM=COPY. To convert a binary or nonbinary string column to use a particular character set, use ALTER TABLE. For successful ...
https://dev.mysql.com/doc/refman/8.0/en/create-user.html
Encryption can be weak if old algorithms using short encryption keys are used. CREATE USER [IF NOT EXISTS] user [auth_option] [, user [auth_option]] ... [REQUIRE {NONE | tls_option [[AND] tls_option] ...}] [WITH resource_option [resource_option] ...
https://dev.mysql.com/doc/refman/8.0/en/creating-ssl-rsa-files-using-mysql.html
The SSL server and client certificates are signed with the CA certificate and key, using the sha256WithRSAEncryption signature algorithm. MySQL provides these ways to create the SSL certificate and key files and RSA key-pair files required to ...
https://dev.mysql.com/doc/refman/8.0/en/engine-condition-pushdown-optimization.html
Join algorithms cannot be combined with referring columns from previous tables in the following two situations: When any of the referred previous tables are in a join buffer. This optimization improves the efficiency of direct comparisons between a ...
https://dev.mysql.com/doc/refman/8.0/en/faqs-cjk.html
The collation used for a Unicode character set determines the ability to sort (that is, distinguish) characters in the set: Collations based on Unicode Collation Algorithm (UCA) 4.0.0 distinguish only BMP characters. This set of Frequently Asked ...
https://dev.mysql.com/doc/refman/8.0/en/faqs-mysql-cluster.html
These distributed algorithms and protocols include global checkpointing, DDL (schema) changes, and node restart handling. In the following section, we answer questions that are frequently asked about MySQL NDB Cluster and the NDB storage engine.
https://dev.mysql.com/doc/refman/8.0/en/faqs-security.html
Where can I find documentation that addresses security issues for MySQL? A.9.2. Is SSL support built into MySQL binaries, or must I recompile the binary myself to enable it? A.9.5. Does MySQL include support for Roles Based Access Control (RBAC)? ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-background.html
At the very core of this technology lies an implementation of the Paxos algorithm. The most common way to create a fault-tolerant system is to resort to making components redundant, in other words the component can be removed and the system should ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-distributed-recovery-connections.html
The group_replication_recovery_compression_algorithms and group_replication_recovery_zstd_compression_level system variables determine permitted compression algorithms, and the zstd compression level used when carrying out state transfer from a ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-fault-tolerance.html
MySQL Group Replication builds on an implementation of the Paxos distributed algorithm to provide distributed coordination between servers. As such, it requires a majority of servers to be active to reach quorum and thus make a decision. This has ...