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https://dev.mysql.com/doc/refman/8.0/en/information-schema-optimization.html
For ANALYZE TABLE operations that update the key distribution, failure may occur even if the operation updates the table itself (for example, if it is a MyISAM table). row *************************** id: 1 select_type: SIMPLE table: cs partitions: ... Applications that monitor databases may make frequent use of INFORMATION_SCHEMA ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-blob-tool.html
The information written to the file includes the table key and BLOB part number for each orphaned BLOB part. This tool can be used to check for and remove orphaned BLOB column parts from NDB tables, as well as to generate a file listing any ...
https://dev.mysql.com/doc/refman/8.0/en/grant.html
[WITH GRANT OPTION] [AS user [WITH ROLE DEFAULT | NONE | ALL | ALL EXCEPT role [, role ] ... ] ] } GRANT PROXY ON user_or_role TO user_or_role [, user_or_role] ... These syntax restrictions apply: GRANT cannot mix granting both privileges and roles ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-tablestats-table.html
CLUST_INDEX_SIZE The number of pages on disk that store the clustered index, which holds the InnoDB table data in primary key order. MODIFIED_COUNTER The number of rows modified by DML operations, such as INSERT, UPDATE, DELETE, and also cascade ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-change-buffer.html
Change buffering is not supported for a secondary index if the index contains a descending index column or if the primary key includes a descending index column. Configuring Change Buffering When INSERT, UPDATE, and DELETE operations are performed ... The change buffer is a special data structure that caches changes to secondary index pages when those pages are not in the buffer ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-information-schema-fulltext_index-tables.html
mysql> SELECT * FROM INFORMATION_SCHEMA.INNODB_FT_CONFIG; +---------------------------+-------+ | KEY | VALUE | +---------------------------+-------+ | optimize_checkpoint_limit | 180 | | synced_doc_id | 8 | | stopword_table_name | | | use_stopword ...INNODB_FT_BEING_DELETED: Provides a snapshot of the INNODB_FT_DELETED table; it is used only during an OPTIMIZE TABLE maintenance ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-locking-reads.html
These clauses are primarily useful when dealing with tree-structured or graph-structured data, either in a single table or split across multiple tables. If you query data and then insert or update related data within the same transaction, the ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-troubleshooting-datadict.html
Information about table definitions is stored in the InnoDB data dictionary. If you move data files around, dictionary data can become inconsistent. If a data dictionary corruption or consistency issue prevents you from starting InnoDB, see Section ...
https://dev.mysql.com/doc/refman/8.0/en/keywords.html
Certain keywords, such as SELECT, DELETE, or BIGINT, are reserved and require special treatment for use as identifiers such as table and column names. Some keywords which are otherwise considered nonreserved are restricted from use as unquoted ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-management.html
Managing an NDB Cluster involves a number of tasks, the first of which is to configure and start NDB Cluster. This is covered in Section 25.4, “Configuration of NDB Cluster”, and Section 25.5, “NDB Cluster Programs”. The next few sections ...