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https://dev.mysql.com/doc/connector-j/en/connector-j-connp-props-debugging-profiling.html
Setting it to "DISABLED" turns off generating OpenTelemetry instrumentation by Connector/J. logger The name of a class that implements 'com.mysql.cj.log.Log' that will be used to log messages to. Default Value com.mysql.cj.log.StandardLogger Since ...
https://dev.mysql.com/doc/connector-j/en/connector-j-connp-props-prepared-statements.html
Default Value true Since Version 3.1.12 useServerPrepStmts Use server-side prepared statements if the server supports them? The server may limit the number of prepared statements with 'max_prepared_stmt_count' or disable them altogether. In case of ...
https://dev.mysql.com/doc/refman/8.4/en/administrative-connection-interface.html
It is possible to disable encrypted connections to the administrative interface by setting the admin_tls_version system variable to the empty value to indicate that no TLS versions are supported. As mentioned in Connection Volume Management, to ...
https://dev.mysql.com/doc/refman/8.4/en/analyze-table.html
MANUAL UPDATE disables automatic updates, and is the default setting if not specified. ANALYZE [NO_WRITE_TO_BINLOG | LOCAL] TABLE tbl_name UPDATE HISTOGRAM ON col_name [, col_name] ... [WITH N BUCKETS] [{MANUAL | AUTO} UPDATE] ANALYZE ...
https://dev.mysql.com/doc/refman/8.4/en/binary-log-transaction-compression.html
Starting mysqld with --binlog-transaction-compression on the command line or in a my.cnf file causes ndb_log_transaction_compression to be enabled automatically and any setting for the --ndb-log-transaction-compression option to be ignored; to ...
https://dev.mysql.com/doc/refman/8.4/en/clone-plugin-concurrent-ddl.html
Concurrent DDL support can be enabled and disabled dynamically using a SET statement like this one: SET GLOBAL clone_block_ddl={OFF|ON} The default setting is clone_block_ddl=OFF, which permits concurrent DDL on the donor. DDL operations that are ...
https://dev.mysql.com/doc/refman/8.4/en/clone-plugin-options-variables.html
If clone_autotune_concurrency is disabled, clone_max_concurrency defines the number of threads spawned for a remote cloning operation. If clone_autotune_concurrency is disabled, clone_max_concurrency defines the number of threads spawned for a ...
https://dev.mysql.com/doc/refman/8.4/en/condition-filtering.html
This flag is enabled by default but can be disabled to suppress condition filtering (for example, if a particular query is found to yield better performance without it). Disable condition filtering for the session: SET optimizer_switch = ... In join ...
https://dev.mysql.com/doc/refman/8.4/en/dbug-package.html
The MySQL server and most MySQL clients are compiled with the DBUG package originally created by Fred Fish. When you have configured MySQL for debugging, this package makes it possible to get a trace file of what the program is doing. This section ...
https://dev.mysql.com/doc/refman/8.4/en/derived-condition-pushdown-optimization.html
If this optimization is disabled by optimizer_switch, you can enable it for a specific query using the DERIVED_CONDITION_PUSHDOWN optimizer hint. To disable the optimization for a given query, use the NO_DERIVED_CONDITION_PUSHDOWN optimizer hint.