26.12.18 Performance Schema Miscellaneous Tables

26.12.18.1 The host_cache Table

26.12.18.2 The keyring_keys table

26.12.18.3 The log_status Table

26.12.18.4 The performance_timers Table

26.12.18.5 The threads Table

26.12.18.6 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