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https://dev.mysql.com/doc/refman/8.4/en/general-thread-states.html
FULLTEXT initialization The server is preparing to perform a natural-language full-text search. The following list describes thread State values that are associated with general query processing and not more specialized activities such as ...
https://dev.mysql.com/doc/refman/8.4/en/group-by-modifiers.html
The GROUP BY clause permits a WITH ROLLUP modifier that causes summary output to include extra rows that represent higher-level (that is, super-aggregate) summary operations. ROLLUP thus enables you to answer questions at multiple levels of ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-frequently-asked-questions.html
User credentials set using CHANGE REPLICATION SOURCE TO are stored in plain text in the replication metadata repositories on the server, but user credentials specified on START GROUP_REPLICATION are saved in memory only, and are removed by a STOP ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-secure-user.html
User credentials set using CHANGE REPLICATION SOURCE TO are stored in plain text in the replication metadata repositories on the server, but user credentials specified on START GROUP_REPLICATION are saved in memory only, and are removed by a STOP ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-user-credentials.html
User credentials set using CHANGE REPLICATION SOURCE TO are stored in plain text in the replication metadata repositories on the server. Group Replication uses a distributed recovery process to synchronize group members when joining them to the ...
https://dev.mysql.com/doc/refman/8.4/en/help.html
HELP 'search_string' The HELP statement returns online information from the MySQL Reference Manual. Its proper operation requires that the help tables in the mysql database be initialized with help topic information (see Section 7.1.17, ...
https://dev.mysql.com/doc/refman/8.4/en/index-merge-optimization.html
The Index Merge access method retrieves rows with multiple range scans and merges their results into one. This access method merges index scans from a single table only, not scans across multiple tables. The merge can produce unions, intersections, ...
https://dev.mysql.com/doc/refman/8.4/en/information-schema-innodb-table-reference.html
The following table summarizes INFORMATION_SCHEMA InnoDB tables. For greater detail, see the individual table descriptions. Table 28.3 INFORMATION_SCHEMA InnoDB Tables Table Name Description INNODB_BUFFER_PAGE Pages in InnoDB buffer pool ...
https://dev.mysql.com/doc/refman/8.4/en/information-schema-introduction.html
You can filter, sort, concatenate, and transform the results from INFORMATION_SCHEMA queries into whatever format your application needs, such as a data structure or a text representation to parse. INFORMATION_SCHEMA provides access to database ...
https://dev.mysql.com/doc/refman/8.4/en/information-schema-ndb-transid-mysql-connection-map-table.html
The ndb_transid_mysql_connection_map table provides a mapping between NDB transactions, NDB transaction coordinators, and MySQL Servers attached to an NDB Cluster as API nodes. This information is used when populating the server_operations and ...