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https://dev.mysql.com/doc/refman/5.7/en/performance-schema-setup-timers-table.html
The setup_timers.TIMER_NAME value can be changed to select a different timer. The value can be any of the values in the performance_timers.TIMER_NAME column. For an explanation of how event timing occurs, see Section 25.4.1, “Performance Schema ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-socket-summary-tables.html
This column can be grouped on to isolate, for example, client activity from that of the server listening sockets. These socket summary tables aggregate timer and byte count information for socket operations: socket_summary_by_event_name: Aggregate ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-status-variable-summary-tables.html
Each status variable summary table has this summary column containing aggregated values: VARIABLE_VALUE The aggregated status variable value for active and terminated sessions. Note The value of the show_compatibility_56 system variable affects the ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-table-handles-table.html
This information shows which table handles the server has open, how they are locked, and by which sessions. The Performance Schema exposes table lock information through the table_handles table to show the table locks currently in effect for each ...
https://dev.mysql.com/doc/refman/5.7/en/pluggable-storage-overview.html
This efficient and modular architecture provides huge benefits for those wishing to specifically target a particular application need—such as data warehousing, transaction processing, or high availability situations—while enjoying the advantage ... The MySQL pluggable storage engine architecture enables a database professional to select a specialized storage engine for a particular application need while being completely shielded from the need to manage any specific application coding ...
https://dev.mysql.com/doc/refman/5.7/en/point-in-time-recovery.html
Typically, this type of recovery is performed after restoring a full backup that brings the server to its state as of the time the backup was made. Point-in-time recovery refers to recovery of data changes up to a given point in time. (The full ...
https://dev.mysql.com/doc/refman/5.7/en/populating-spatial-columns.html
After you have created spatial columns, you can populate them with spatial data. Values should be stored in internal geometry format, but you can convert them to that format from either Well-Known Text (WKT) or Well-Known Binary (WKB) format. For ...
https://dev.mysql.com/doc/refman/5.7/en/problems.html
This section lists some common problems and error messages that you may encounter. It describes how to determine the causes of the problems and what to do to solve them.
https://dev.mysql.com/doc/refman/5.7/en/programs-admin-utils.html
This section describes administrative programs and programs that perform miscellaneous utility operations.
https://dev.mysql.com/doc/refman/5.7/en/programs-client.html
This section describes client programs that connect to the MySQL server.