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27.4.5.16 The ps_thread_stack() Function

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Returns a JSON formatted stack of all statements, stages, and events within the Performance Schema for a given thread ID.

Parameters

  • in_thread_id BIGINT: The ID of the thread to trace. The value should match the THREAD_ID column from some Performance Schema threads table row.

  • in_verbose BOOLEAN: Whether to include file:lineno information in the events.

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Return Value

A LONGTEXT CHARACTER SET latin1 value.

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Example
  1. mysql> SELECT sys.ps_thread_stack(37, FALSE) AS thread_stack\G
  2. *************************** 1. row ***************************
  3. thread_stack: {"rankdir": "LR","nodesep": "0.10",
  4. "stack_created": "2014-02-19 13:39:03", "mysql_version": "8.0.2-dmr-debug-log",
  5. "mysql_user": "root@localhost","events": [{"nesting_event_id": "0",
  6. "event_id": "10", "timer_wait": 256.35, "event_info": "sql/select",
  7. "wait_info": "select @@version_comment limit 1\nerrors: 0\nwarnings: 0\nlock time:
  8. ...

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

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