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https://dev.mysql.com/doc/refman/8.4/en/selinux-troubleshooting.html
In such cases, you can use the audit2allow utility to create custom policies to permit access where it is required. The typical method for creating custom policies is to change the SELinux mode to permissive, identify access denial messages in the ... Troubleshooting SELinux typically involves placing SELinux into permissive mode, rerunning problematic operations, checking for access denial messages in the SELinux audit log, and placing SELinux back into enforcing mode after problems are ...
https://dev.mysql.com/doc/refman/8.4/en/set.html
A SET is a string object that can have zero or more values, each of which must be chosen from a list of permitted values specified when the table is created. Trailing spaces are automatically deleted from SET member values in the table definition ...SET column values that consist of multiple set members are specified with members separated by commas ...
https://dev.mysql.com/doc/refman/8.4/en/spatial-types.html
The specification describes a set of SQL geometry types, as well as functions on those types to create and analyze geometry values. The other storage engines support non-SPATIAL indexes, as described in Section 15.1.15, “CREATE INDEX Statement”.
https://dev.mysql.com/doc/refman/8.4/en/stored-programs-defining.html
Each stored program contains a body that consists of an SQL statement. This statement may be a compound statement made up of several statements separated by semicolon (;) characters. For example, the following stored procedure has a body made up of ...
https://dev.mysql.com/doc/refman/8.4/en/stored-routines-metadata.html
Use the SHOW CREATE PROCEDURE and SHOW CREATE FUNCTION statements to see routine definitions. To obtain metadata about stored routines: Query the ROUTINES table of the INFORMATION_SCHEMA database. Use the SHOW PROCEDURE STATUS and SHOW FUNCTION ...
https://dev.mysql.com/doc/refman/8.4/en/structured-system-variables.html
These rules may assume greater significance if some other type of structured variable is created in the future. (You could also have written --default.key_buffer_size=256K.) In addition, the server creates a second key cache named extra_cache that ... A structured variable differs from a regular system variable in two respects: Its value is a structure with components that specify server parameters considered to be closely ...
https://dev.mysql.com/doc/refman/8.4/en/subquery-optimization-with-exists.html
AND trigcond(oe_N=ie_N) ) Each trigcond(X) is a special function that evaluates to the following values: X when the “linked” outer expression oe_i is not NULL TRUE when the “linked” outer expression oe_i is NULL Note Trigger functions are ...
https://dev.mysql.com/doc/refman/8.4/en/sys-statements-with-temp-tables.html
memory_tmp_tables The total number of internal in-memory temporary tables created by occurrences of the statement. disk_tmp_tables The total number of internal on-disk temporary tables created by occurrences of the statement. These views list ...
https://dev.mysql.com/doc/refman/8.4/en/table-locking.html
Workarounds for Locking Performance Issues The following items describe some ways to avoid or reduce contention caused by table locking: Consider switching the table to the InnoDB storage engine, either using CREATE TABLE ... You might have to ...
https://dev.mysql.com/doc/refman/8.4/en/time-zone-support.html
Note Named time zones can be used only if the time zone information tables in the mysql database have been created and populated. The MySQL installation procedure creates the time zone tables, but does not load them. This section describes the time ...