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https://dev.mysql.com/doc/refman/5.7/en/gis-class-multipoint.html
A MultiPoint is a geometry collection composed of Point elements. MultiPoint Examples On a world map, a MultiPoint could represent a chain of small islands. On a city map, a MultiPoint could represent the outlets for a ticket office. A MultiPoint ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-sys-fields-table.html
The INNODB_SYS_FIELDS table provides metadata about the key columns (fields) of InnoDB indexes, equivalent to the information from the SYS_FIELDS table in the InnoDB data dictionary. For related usage information and examples, see Section 14.16.3, ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-table-privileges-table.html
The TABLE_PRIVILEGES table has these columns: GRANTEE The name of the account to which the privilege is granted, in 'user_name'@'host_name' format. TABLE_CATALOG The name of the catalog to which the table belongs. TABLE_SCHEMA The name of the schema ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-online-add-node.html
This section describes how to add NDB Cluster data nodes “online”—that is, without needing to shut down the cluster completely and restart it as part of the process. Important Currently, you must add new data nodes to an NDB Cluster as part ...
https://dev.mysql.com/doc/refman/5.7/en/mysqlbinlog-server-id.html
When invoked with the --read-from-remote-server option, mysqlbinlog connects to a MySQL server, specifies a server ID to identify itself, and requests binary log files from the server. You can use mysqlbinlog to request log files from a server in ...
https://dev.mysql.com/doc/refman/5.7/en/replication-semisync-monitoring.html
To check their values, use SHOW STATUS: mysql> SHOW STATUS LIKE 'Rpl_semi_sync%'; When the source switches between asynchronous or semisynchronous replication due to commit-blocking timeout or a replica catching up, it sets the value of the ... The ...
https://dev.mysql.com/doc/refman/5.7/en/symbolic-links.html
You can move databases or tables from the database directory to other locations and replace them with symbolic links to the new locations. You might want to do this, for example, to move a database to a file system with more free space or increase ...
https://dev.mysql.com/doc/refman/5.7/en/sys-ps-thread-id.html
Returns the Performance Schema thread ID assigned to a given connection ID, or the thread ID for the current connection if the connection ID is NULL. Parameters in_connection_id BIGINT UNSIGNED: The ID of the connection for which to return the ...
https://dev.mysql.com/doc/refman/5.7/en/commands-out-of-sync.html
This can happen, for example, if you are using mysql_use_result() and try to execute a new query before you have called mysql_free_result(). It can also happen if you try to execute two queries that return data without calling mysql_use_result() or ... If you get Commands out of sync; you can't run this command now in your client code, you are calling client functions in the wrong ...
https://dev.mysql.com/doc/refman/5.7/en/faqs-general.html
Does MySQL have a NOW() function with fractions of seconds? Yes, see Section 11.2.7, “Fractional Seconds in Time Values”. Does MySQL have a NOW() function with fractions of seconds? A.1.7. If an exactly identical query is made (which often ...