28.4.5.15 The ps_thread_id() Function

Note注意

As of MySQL 8.0.16, ps_thread_id() is deprecated; expect it to be removed in a future version of MySQL. Applications that use it should be migrated to use the built-in PS_THREAD_ID() and PS_CURRENT_THREAD_ID() functions instead. See Section 12.22, “Performance Schema Functions”

Returns the Performance Schema thread ID assigned to a given connection ID, or the thread ID for the current connection if the connection ID is NULL.

Parameters

  • in_connection_id BIGINT UNSIGNED: The ID of the connection for which to return the thread 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

A BIGINT UNSIGNED value.

Example
mysql> SELECT sys.ps_thread_id(260);
+-----------------------+
| sys.ps_thread_id(260) |
+-----------------------+
|                   285 |
+-----------------------+