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https://dev.mysql.com/doc/refman/8.4/en/mysql-shell-tutorial-javascript-indexes-create.html
In the index field description, "TEXT(40)" represents the number of characters to index, and "required": True specifies that the field is required to exist in the document. mysql-js> db.countryinfo.createIndex("name", {"fields": [{"field": "$.Name", ... Indexes are used to find documents with specific field values ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-shell-tutorial-python-documents-index.html
In the index field description, "TEXT(40)" represents the number of characters to index, and "required": True specifies that the field is required to exist in the document. mysql-py> db.countryinfo.create_index("name", {"fields": [{"field": ...
https://dev.mysql.com/doc/refman/8.4/en/online-ddl-parallel-thread-configuration.html
Parallel scan is not supported on tables defined with a full-text index. The default setting is calculated by the number of available logical processors on the system divided by 8, with a minimum default value of 4. The maximum setting is 256, which ...
https://dev.mysql.com/doc/refman/8.4/en/option-files.html
Many option files are plain text files, created using any text editor. In the latter context, if “x” is not a valid escape sequence character, \x becomes “x” rather than \x. Most MySQL programs can read startup options from option files ...
https://dev.mysql.com/doc/refman/8.4/en/partitioning-limitations.html
There are two exceptions to this restriction: When partitioning by [LINEAR] KEY, it is possible to use columns of any valid MySQL data type other than TEXT or BLOB as partitioning keys, because the internal key-hashing functions produce the correct ... This section discusses current restrictions and limitations on MySQL partitioning ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-error-log-table.html
It also includes the full text of error messages to support more free-form analysis. Of the logs the MySQL server maintains, one is the error log to which it writes diagnostic messages (see Section 7.4.2, “The Error Log”). Typically, the server ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-events-statements-current-table.html
To change this value, set the performance_schema_max_sql_text_length system variable at server startup. DIGEST_TEXT The normalized statement digest text, or NULL if the statements_digest consumer is no. Consequently, values selected from the ...The ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-replication-applier-status-by-worker-table.html
LAST_APPLIED_TRANSACTION_LAST_TRANSIENT_ERROR_MESSAGE The message text for the last transient error that caused the transaction to be retried. APPLYING_TRANSACTION_LAST_TRANSIENT_ERROR_MESSAGE The message text for the last transient error that ...
https://dev.mysql.com/doc/refman/8.4/en/point-in-time-recovery-binlog.html
To view events from the log, send mysqlbinlog output into a paging program: $> mysqlbinlog binlog_files | more Alternatively, save the output in a file and view the file in a text editor: $> mysqlbinlog binlog_files > tmpfile $> ... This section ...
https://dev.mysql.com/doc/refman/8.4/en/prepare.html
preparable_stmt is either a string literal or a user variable that contains the text of the SQL statement. A statement prepared in stored program context cannot refer to stored procedure or function parameters or local variables because they go out ... PREPARE stmt_name FROM preparable_stmt The PREPARE statement prepares a SQL statement and assigns it a name, stmt_name, by which to refer to the statement ...