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https://dev.mysql.com/doc/refman/8.4/en/fulltext-fine-tuning.html
Some variable changes require that you rebuild the FULLTEXT indexes in your tables. For MyISAM tables, note the remarks regarding myisamchk in the instructions that follow for rebuilding MyISAM full-text indexes. Modifying Boolean Full-Text Search ...You can exert more control over full-text searching behavior if you have a MySQL source distribution because some changes require source code ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-object-filtering.html
The setup_objects table controls whether the Performance Schema monitors particular table and stored program objects. TABLE filtering affects table I/O events (wait/io/table/sql/handler instrument) and table lock events (wait/lock/table/sql/handler ...The OBJECT_TYPE column indicates the type of object to which a row ...
https://dev.mysql.com/doc/relnotes/mysql-cluster/8.4/en/news-8-4-0.html
(Bug #35997178) The unused INFORMATION_SCHEMA.TABLESPACES table, deprecated in MySQL 8.0.22, has now been removed. The Information Schema FILES table provides tablespace-related information for NDB tables. (WL #14065) ndbinfo Information Database ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndbinfo.html
This database contains a number of tables, each providing a different sort of data about NDB Cluster node status, resource usage, and operations. You can find more detailed information about each of these tables in the next several sections. ndbinfo ... ndbinfo is a database containing information specific to NDB ...
https://dev.mysql.com/doc/extending-mysql/8.4/en/writing-information-schema-plugins.html
This section describes how to write a server-side INFORMATION_SCHEMA table plugin. To write an INFORMATION_SCHEMA table plugin, include the following header files in the plugin source file. #include <sql_class.h> #include <table.h> These header ...
https://dev.mysql.com/doc/refman/8.4/en/external-locking.html
External locking is the use of file system locking to manage contention for MyISAM database tables by multiple processes. External locking is used in situations where a single process such as the MySQL server cannot be assumed to be the only ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-online-add-node-remarks.html
The ability to add new nodes online includes a means to reorganize NDBCLUSTER table data and indexes so that they are distributed across all data nodes, including the new ones, by means of the ALTER TABLE ... Table reorganization of both in-memory ... This section provides general information about the behavior of and current limitations in adding NDB Cluster nodes ...
https://dev.mysql.com/doc/refman/8.4/en/partitioning-selection.html
This option always follows the name of the table to which the partition or partitions belong. Each name in this list must be the name of an existing partition or subpartition of the specified table; if any of the partitions or subpartitions are not ... Explicit selection of partitions and subpartitions for rows matching a given WHERE condition is ...
https://dev.mysql.com/doc/refman/8.4/en/storage-requirements.html
InnoDB Table Storage Requirements NDB Table Storage Requirements Numeric Type Storage Requirements Date and Time Type Storage Requirements String Type Storage Requirements Spatial Type Storage Requirements JSON Storage Requirements The storage ...
https://dev.mysql.com/doc/refman/8.4/en/time-zone-support.html
This section describes the time zone settings maintained by MySQL, how to load the system tables required for named time support, how to stay current with time zone changes, and how to enable leap-second support. Time Zone Variables Populating the ...Time zone offsets are also supported for inserted datetime values; see Section 13.2.2, “The DATE, DATETIME, and TIMESTAMP Types”, for more ...