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https://dev.mysql.com/doc/refman/8.0/en/charset-unicode-utf32.html
Also, unlike utf16, there are no tricks for encoding in utf32, so the stored value equals the code value. There is in fact only one validity check for utf32: No code value may be greater than 0x10ffff. The utf32 character set is fixed length (like ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-setup-instruments-table.html
Each instrument added to the source code provides a row for the setup_instruments table, even when the instrumented code is not executed. If an enabled instrument is not timed, the instrument code is enabled, but the timer is not. The ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema.html
The PERFORMANCE_SCHEMA storage engine collects event data using “instrumentation points” in server source code. Data collection is implemented by modifying the server source code to add instrumentation. Execution of server code proceeds normally ... The MySQL Performance Schema is a feature for monitoring MySQL Server execution at a low ...
https://dev.mysql.com/doc/refman/8.0/en/condition-handling.html
Handlers can be defined for general conditions such as warnings or exceptions, or for specific conditions such as a particular error code. Conditions may arise during stored program execution that require special handling, such as exiting the ...
https://dev.mysql.com/doc/refman/8.0/en/data-masking-component-usage.html
Both functions support an input string that is encoded in any character set: mask_inner() masks the interior of its string argument, leaving the ends unmasked. Thus, even though ssn is defined as VARCHAR(11), if the ssn column has a multibyte ...
https://dev.mysql.com/doc/refman/8.0/en/data-masking-plugin-usage.html
Thus, even though ssn is defined as VARCHAR(11), if the ssn column has a multibyte character set, it may appear to be longer than 11 bytes when passed to a loadable function, and an error occurs. Before using MySQL Enterprise Data Masking and ...
https://dev.mysql.com/doc/refman/8.0/en/derived-tables.html
Before 8.0.14, it produces an error: Unknown column 't1.b' in 'where clause' The optimizer determines information about derived tables in such a way that EXPLAIN does not need to materialize them. For information about lateral derived tables ...
https://dev.mysql.com/doc/refman/8.0/en/example-storage-engine.html
Its purpose is to serve as an example in the MySQL source code that illustrates how to begin writing new storage engines. mysql> CREATE TABLE test (i INT) ENGINE = EXAMPLE; Query OK, 0 rows affected (0.78 sec) mysql> INSERT INTO test ... The EXAMPLE ...
https://dev.mysql.com/doc/refman/8.0/en/fips-mode.html
Important In general, STRICT imposes more restrictions than ON, but MySQL itself has no FIPS-specific code other than to specify the FIPS mode value to OpenSSL. An error occurs for attempts to set the FIPS mode to a different value. MySQL supports ...
https://dev.mysql.com/doc/refman/8.0/en/keyring-okv-plugin.html
C interface: In C-language code, call the keyring service functions described in Section 7.6.9.2, “The Keyring Service”. Note The keyring_okv plugin is an extension included in MySQL Enterprise Edition, a commercial product. The Key Management ...