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https://dev.mysql.com/doc/refman/8.0/en/partitioning-range.html
At some point in the future—when the number of stores has increased to 25, 30, or more—you can use an ALTER TABLE statement to add new partitions for stores 21-25, 26-30, and so on (see Section 26.3, “Partition Management”, for details of ...
https://dev.mysql.com/doc/refman/8.0/en/federated-usagenotes.html
It does not support ALTER TABLE, or any Data Definition Language statements that directly affect the structure of the table, other than DROP TABLE. The remote table that a FEDERATED table points to must exist before you try to access the table ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-tables-extensions-table.html
The TABLES_EXTENSIONS table (available as of MySQL 8.0.21) provides information about table attributes defined for primary and secondary storage engines. The TABLES_EXTENSIONS table has these columns: TABLE_CATALOG The name of the catalog to which ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-ft-config-table.html
The INNODB_FT_CONFIG table provides metadata about the FULLTEXT index and associated processing for an InnoDB table. Before querying it, set the value of the innodb_ft_aux_table system variable to the name (including the database name) of the table ...The values for this column might change, depending on the needs for performance tuning and debugging for InnoDB full-text ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-events-transactions-current-table.html
The table stores one row per thread showing the current status of the thread's most recent monitored transaction event, so there is no system variable for configuring the table size. Other tables that contain transaction event rows are logically ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-prepared-statements-instances-table.html
This is accessed through the MySQL C API and maps onto underlying server commands as shown in the following table. This is accessed using SQL statements and maps onto underlying server commands as shown in the following table. This table enables ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-processlist-table.html
Note If the performance_schema_show_processlist system variable is enabled, the processlist table also serves as the basis for an alternative implementation underlying the SHOW PROCESSLIST statement. As mentioned previously, if the ...For a ... The ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-wait-summary-tables.html
The Performance Schema maintains tables for collecting current and recent wait events, and aggregates that information in summary tables. Section 29.12.4, “Performance Schema Wait Event Tables” describes the events on which wait summaries are ...Example wait event summary information: mysql> SELECT * FROM performance_schema.events_waits_summary_global_by_event_name\G ...
https://dev.mysql.com/doc/refman/8.0/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 ... However, it is not possible to perform ...Table reorganization of both in-memory and Disk Data tables is ... This section provides general information about the ...
https://dev.mysql.com/doc/refman/8.0/en/optimizing-myisam-bulk-data-loading.html
For a MyISAM table, you can use concurrent inserts to add rows at the same time that SELECT statements are running, if there are no deleted rows in middle of the data file. With some extra work, it is possible to make LOAD DATA run even faster for a ... These performance tips supplement the general guidelines for fast inserts in Section 10.2.5.1, “Optimizing INSERT ...