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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/group-by-optimization.html
The most general way to satisfy a GROUP BY clause is to scan the whole table and create a new temporary table where all rows from each group are consecutive, and then use this temporary table to discover groups and apply aggregate functions (if ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-communication-protocol.html
From MySQL 8.0.16, Group Replication has the concept of a communication protocol for the group. The Group Replication communication protocol version can be managed explicitly, and set to accommodate the oldest MySQL Server version that you want the ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-failure-detection.html
Group Replication’s failure detection mechanism is a distributed service which is able to identify that a server in the group is not communicating with the others, and is therefore suspected of being out of service. If the group’s consensus is ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-functions-for-communication-protocol.html
The following functions enable you to inspect and configure the Group Replication communication protocol version that is used by a replication group. Versions from MySQL 5.7.14 allow compression of messages (see Section 20.7.4, “Message ...
https://dev.mysql.com/doc/refman/8.0/en/handler.html
HANDLER tbl_name OPEN [ [AS] alias] HANDLER tbl_name READ index_name { = | <= | >= | < | > } (value1,value2,...) [ WHERE where_condition ] [LIMIT ... ] HANDLER tbl_name READ index_name { FIRST | NEXT | PREV | LAST } [ WHERE where_condition ] [LIMIT ...
https://dev.mysql.com/doc/refman/8.0/en/identifier-mapping.html
There is a correspondence between database and table identifiers and names in the file system. For the basic structure, MySQL represents each database as a directory in the data directory, and depending upon the storage engine, each table may be ...
https://dev.mysql.com/doc/refman/8.0/en/if.html
[ELSE statement_list] END IF The IF statement for stored programs implements a basic conditional construct. Note There is also an IF() function, which differs from the IF statement described here. The IF statement can have THEN, ELSE, and ELSEIF ...
https://dev.mysql.com/doc/refman/8.0/en/index-hints.html
Index hints give the optimizer information about how to choose indexes during query processing. Index hints, described here, differ from optimizer hints, described in Section 10.9.3, “Optimizer Hints”. They also work with multi-table DELETE ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-parameters-table.html
The PARAMETERS table provides information about parameters for stored routines (stored procedures and stored functions), and about return values for stored functions. The PARAMETERS table does not include built-in (native) functions or loadable ...