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27.4.5.13 The ps_is_thread_instrumented() Function

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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.

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Return Value

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

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Example
  1. mysql> SELECT sys.ps_is_thread_instrumented(43);
  2. +-----------------------------------+
  3. | sys.ps_is_thread_instrumented(43) |
  4. +-----------------------------------+
  5. | UNKNOWN                           |
  6. +-----------------------------------+
  7. mysql> SELECT sys.ps_is_thread_instrumented(CONNECTION_ID());
  8. +------------------------------------------------+
  9. | sys.ps_is_thread_instrumented(CONNECTION_ID()) |
  10. +------------------------------------------------+
  11. | YES                                            |
  12. +------------------------------------------------+

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Document created the 26/06/2006, last modified the 26/10/2018
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