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https://dev.mysql.com/doc/refman/5.7/en/subquery-restrictions.html
The permitted syntax is therefore more specifically expressed as row_constructor [NOT] IN table_subquery For expr op {ALL|ANY|SOME} subquery, expr must be a scalar value and the subquery must be a column subquery; it cannot return multiple-column ...
https://dev.mysql.com/doc/refman/5.7/en/sys-host-summary-by-file-io-type.html
The host_summary_by_file_io_type and x$host_summary_by_file_io_type views have these columns: host The host from which the client connected. Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to be for ...
https://dev.mysql.com/doc/refman/5.7/en/sys-host-summary-by-file-io.html
The host_summary_by_file_io and x$host_summary_by_file_io views have these columns: host The host from which the client connected. Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to be for background ...
https://dev.mysql.com/doc/refman/5.7/en/sys-host-summary-by-stages.html
The host_summary_by_stages and x$host_summary_by_stages views have these columns: host The host from which the client connected. Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to be for background ...By ...
https://dev.mysql.com/doc/refman/5.7/en/sys-host-summary-by-statement-latency.html
The host_summary_by_statement_latency and x$host_summary_by_statement_latency views have these columns: host The host from which the client connected. Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to ...total_latency The total wait time of timed statements for the ...
https://dev.mysql.com/doc/refman/5.7/en/sys-host-summary-by-statement-type.html
The host_summary_by_statement_type and x$host_summary_by_statement_type views have these columns: host The host from which the client connected. Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to be for ... These views summarize informaion about statements executed, grouped by host and statement ...
https://dev.mysql.com/doc/refman/5.7/en/sys-host-summary.html
The host_summary and x$host_summary views have these columns: host The host from which the client connected. Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to be for background threads and are reported ... These views summarize statement activity, file I/O, and connections, grouped by ...
https://dev.mysql.com/doc/refman/5.7/en/sys-innodb-lock-waits.html
The innodb_lock_waits and x$innodb_lock_waits views have these columns: wait_started The time at which the lock wait started. These views summarize the InnoDB locks that transactions are waiting for. wait_age How long the lock has been waited for, ...
https://dev.mysql.com/doc/refman/5.7/en/sys-memory-by-host-by-current-bytes.html
The memory_by_host_by_current_bytes and x$memory_by_host_by_current_bytes views have these columns: host The host from which the client connected. Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to be ...
https://dev.mysql.com/doc/refman/5.7/en/sys-memory-by-user-by-current-bytes.html
The memory_by_user_by_current_bytes and x$memory_by_user_by_current_bytes views have these columns: user The client user name. Rows for which the USER column in the underlying Performance Schema table is NULL are assumed to be for background threads ...By default, rows are sorted by descending amount of memory ...