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MySQL 9.0 Reference Manual  /  ...  /  The ps_is_thread_instrumented() Function

30.4.5.13 The ps_is_thread_instrumented() Function

Returns YES or NO to indicate whether Performance Schema instrumentation for a given connection ID is enabled, UNKNOWN if the ID is unknown, or NULL if the ID is NULL.

Parameters
  • in_connection_id BIGINT UNSIGNED: The connection ID. This is a value of the type given in the PROCESSLIST_ID column of the Performance Schema threads table or the Id column of SHOW PROCESSLIST output.

Return Value

An ENUM('YES','NO','UNKNOWN') value.

Example
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mysql> SELECT sys.ps_is_thread_instrumented(43); +-----------------------------------+ | sys.ps_is_thread_instrumented(43) | +-----------------------------------+ | UNKNOWN | +-----------------------------------+ mysql> SELECT sys.ps_is_thread_instrumented(CONNECTION_ID()); +------------------------------------------------+ | sys.ps_is_thread_instrumented(CONNECTION_ID()) | +------------------------------------------------+ | YES | +------------------------------------------------+