events_stages_history

Overview

A description for this Performance-schema Table has not yet been added to this Documentation.

See also: Performance Schema in 10.6 ES, in 10.5 ES, and in 10.4 ES

DETAILS

SCHEMA

CREATE TABLE `events_stages_history` (
  `THREAD_ID` bigint(20) unsigned NOT NULL COMMENT 'Thread associated with the event. Together with EVENT_ID uniquely identifies the row.',
  `EVENT_ID` bigint(20) unsigned NOT NULL COMMENT 'Thread''s current event number at the start of the event. Together with THREAD_ID uniquely identifies the row.',
  `END_EVENT_ID` bigint(20) unsigned DEFAULT NULL COMMENT 'NULL when the event starts, set to the thread''s current event number at the end of the event.',
  `EVENT_NAME` varchar(128) NOT NULL COMMENT 'Event instrument name and a NAME from the setup_instruments table',
  `SOURCE` varchar(64) DEFAULT NULL COMMENT 'Name and line number of the source file containing the instrumented code that produced the event.',
  `TIMER_START` bigint(20) unsigned DEFAULT NULL COMMENT 'Value in picoseconds when the event timing started or NULL if timing is not collected.',
  `TIMER_END` bigint(20) unsigned DEFAULT NULL COMMENT 'Value in picoseconds when the event timing ended, or NULL if the event has not ended or timing is not collected.',
  `TIMER_WAIT` bigint(20) unsigned DEFAULT NULL COMMENT 'Value in picoseconds of the event''s duration or NULL if the event has not ended or timing is not collected.',
  `WORK_COMPLETED` bigint(20) unsigned DEFAULT NULL COMMENT 'The number of work units completed for the stage. NULL if the stage event progress is not instrumented.',
  `WORK_ESTIMATED` bigint(20) unsigned DEFAULT NULL COMMENT 'The number of work units expected for the stage. NULL if the stage event progress is not instrumented.',
  `NESTING_EVENT_ID` bigint(20) unsigned DEFAULT NULL COMMENT 'EVENT_ID of event within which this event nests.',
  `NESTING_EVENT_TYPE` enum('TRANSACTION','STATEMENT','STAGE','WAIT') DEFAULT NULL COMMENT 'Nesting event type. Either transaction, statement, stage or wait.'
)

CHANGE HISTORY

Release Series

History

10.6 Enterprise

  • Present starting in MariaDB Enterprise Server 10.6.4-1.

  • Schema changed in MariaDB Enterprise Server 10.6.5-2: ...

10.5 Enterprise

  • Schema changed in MariaDB Enterprise Server 10.5.3-1: ...

  • Schema changed in MariaDB Enterprise Server 10.5.13-9: ...

10.4 Enterprise

  • Present starting in MariaDB Enterprise Server 10.4.6-1.

  • Schema changed in MariaDB Community Server 10.4.22-14: ...

EXTERNAL REFERENCES