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https://dev.mysql.com/doc/refman/9.7/en/show-replica-status.html
SHOW REPLICA STATUS [FOR CHANNEL channel] This statement provides status information on essential parameters of the replica threads. The statement requires the REPLICATION CLIENT privilege (or the deprecated SUPER privilege). When run concurrently ...
https://dev.mysql.com/doc/refman/9.7/en/sorted-index-builds.html
InnoDB performs a bulk load instead of inserting one index record at a time when creating or rebuilding indexes. This method of index creation is also known as a sorted index build. In the first phase, the clustered index is scanned, and index ...
https://dev.mysql.com/doc/refman/9.7/en/spatial-convenience-functions.html
The functions in this section provide convenience operations on geometry values. Unless otherwise specified, functions in this section handle their geometry arguments as follows: If any argument is NULL, the return value is NULL. If any geometry ...
https://dev.mysql.com/doc/refman/9.7/en/srjs-session-info.html
For general information about stored routines in MySQL, see Section 27.2, “Using Stored Routines”. The MLE component provides a number of loadable functions for working with MLE user sessions. These functions are listed and described here: ...
https://dev.mysql.com/doc/refman/9.7/en/srjsapi-classifier.html
Classifier Constructor Classifier.train() Classifier.fit() Classifier.predict() Classifier.predictProba() Classifier.score() Classifier.explain() Classifier.getExplainer() Classifier.unload() This class encapsulates the classification task as ...
https://dev.mysql.com/doc/refman/9.7/en/srjsapi-forecaster.html
Forecaster Constructor Forecaster.train() Forecaster.fit() Forecaster.predict() Forecaster.score() Forecaster.unload() This class encapsulates the forecasting task as described in Generate Forecasts. Forecaster supports methods for loading, ...
https://dev.mysql.com/doc/refman/9.7/en/subquery-materialization.html
The optimizer uses materialization to enable more efficient subquery processing. Materialization speeds up query execution by generating a subquery result as a temporary table, normally in memory. The first time MySQL needs the subquery result, it ...
https://dev.mysql.com/doc/refman/9.7/en/switchable-optimizations.html
Its value is a set of flags, each of which has a value of on or off to indicate whether the corresponding optimizer behavior is enabled or disabled. This variable has global and session values and can be changed at runtime. To see the current set of ...
https://dev.mysql.com/doc/refman/9.7/en/symbolic-links-to-tables.html
Note Symbolic link support as described here, along with the --symbolic-links option that controls it, and is deprecated; expect these to be removed in a future version of MySQL. For files used by tables for other storage engines, you may get ...
https://dev.mysql.com/doc/refman/9.7/en/table.html
TABLE is a DML statement which returns rows and columns of the named table. Given the existence of a table named t, the following two statements produce identical output: TABLE t; SELECT * FROM t; You can order and limit the number of rows produced ...