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https://dev.mysql.com/doc/refman/8.0/en/nested-join-optimization.html
The syntax of table_factor is extended in comparison with the SQL Standard. The latter accepts only table_reference, not a list of them inside a pair of parentheses. This is a conservative extension if we consider each comma in a list of ...The ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-information-schema.html
This section provides information and usage examples for InnoDB INFORMATION_SCHEMA tables. InnoDB INFORMATION_SCHEMA tables provide metadata, status information, and statistics about various aspects of the InnoDB storage engine. You can view a list ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-cluster-locks.html
The cluster_locks table provides information about current lock requests holding and waiting for locks on NDB tables in an NDB Cluster, and is intended as a companion table to cluster_operations. Information obtain from the cluster_locks table may ...The transaction ID (transid column) is the identifier generated by the NDB API for the transaction requesting or holding the current ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-dict-obj-info.html
The dict_obj_info table provides information about NDB data dictionary (DICT) objects such as tables and indexes. (The dict_obj_types table can be queried for a list of all the types.) This information includes the object's type, state, parent ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-dictionary-columns.html
The table provides NDB dictionary information about columns of NDB tables.
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-index-columns.html
This table provides information about indexes on NDB tables. The columns of the index_columns table are listed here, along with brief descriptions: table_id Unique ID of the NDB table for which the index is defined Name of the database containing ...
https://dev.mysql.com/doc/refman/8.0/en/sys-statements-with-full-table-scans.html
These views display normalized statements that have done full table scans. The statements_with_full_table_scans and x$statements_with_full_table_scans views have these columns: query The normalized statement string. no_index_used_count The total ...
https://dev.mysql.com/doc/refman/8.0/en/firewall-usage.html
The allowlist is the set of rules that defines which statements are acceptable to the profile. For example: the profile can be placed in training mode to establish the allowlist; the allowlist can be used for restricting statement execution or ...
https://dev.mysql.com/doc/refman/8.0/en/fulltext-stopwords.html
The following example demonstrates creating and configuring a new global stopword table for InnoDB. To see the default InnoDB stopword list, query the Information Schema INNODB_FT_DEFAULT_STOPWORD table. The stopword table must have a single VARCHAR ... The stopword list is loaded and searched for full-text queries using the server character set and collation (the values of the character_set_server and collation_server system ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-temporary-tablespace.html
Session Temporary Tablespaces Session temporary tablespaces store user-created temporary tables and internal temporary tables created by the optimizer when InnoDB is configured as the storage engine for on-disk internal temporary tables. InnoDB ...