26.12.17 Performance Schema Miscellaneous Tables

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26.12.17.1 The host_cache Table

26.12.17.2 The keyring_keys table

26.12.17.3 The log_status Table

26.12.17.4 The performance_timers Table

26.12.17.5 The threads Table

26.12.17.6 The user_defined_functions Table

The following sections describe tables that do not fall into the table categories discussed in the preceding sections:

• host_cache: Information from the internal host cache

• performance_timers: Which event timers are available

• threads: Information about server threads

• user_defined_functions: User-defined functions registered by a server component, plugin, or CREATE FUNCTION statement

• log_status: Information about server logs for backup purposes