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https://dev.mysql.com/doc/refman/5.7/en/sys-format-statement.html
This function is useful for formatting possibly lengthy statements retrieved from Performance Schema tables to a known fixed maximum length. Given a string (normally representing an SQL statement), reduces it to the length given by the ...
https://dev.mysql.com/doc/refman/5.7/en/sys-format-time.html
Given a Performance Schema latency or wait time in picoseconds, converts it to human-readable format and returns a string consisting of a value and a units indicator. Depending on the size of the value, the units part is ps (picoseconds), ns ...
https://dev.mysql.com/doc/refman/5.7/en/sys-host-summary-by-file-io-type.html
Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to be for background threads and are reported with a host name of background. These views summarize file I/O, grouped by host and event type. By default, ...
https://dev.mysql.com/doc/refman/5.7/en/sys-host-summary-by-file-io.html
Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to be for background threads and are reported with a host name of background. By default, rows are sorted by descending total file I/O latency. The ...
https://dev.mysql.com/doc/refman/5.7/en/sys-host-summary-by-stages.html
Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to be for background threads and are reported with a host name of background. By default, rows are sorted by host and descending total latency. The ...
https://dev.mysql.com/doc/refman/5.7/en/sys-host-summary-by-statement-latency.html
Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to be for background threads and are reported with a host name of background. The host_summary_by_statement_latency and x$host_summary_by_statement_latency ...
https://dev.mysql.com/doc/refman/5.7/en/sys-host-summary-by-statement-type.html
Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to be for background threads and are reported with a host name of background. These views summarize informaion about statements executed, grouped by host ...
https://dev.mysql.com/doc/refman/5.7/en/sys-host-summary.html
Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to be for background threads and are reported with a host name of background. These views summarize statement activity, file I/O, and connections, grouped ...
https://dev.mysql.com/doc/refman/5.7/en/sys-innodb-lock-waits.html
These views summarize the InnoDB locks that transactions are waiting for. The innodb_lock_waits and x$innodb_lock_waits views have these columns: wait_started The time at which the lock wait started. wait_age How long the lock has been waited for, ...
https://dev.mysql.com/doc/refman/5.7/en/sys-memory-by-host-by-current-bytes.html
Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to be for background threads and are reported with a host name of background. By default, rows are sorted by descending amount of memory used. The ...