events_waits_current

This page is part of MariaDB's Enterprise Documentation.

The parent of this page is: Performance Schema

Topics on this page:

Overview
DETAILS
- SCHEMA
CHANGE HISTORY
EXTERNAL REFERENCES

Overview

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

DETAILS

SCHEMA

CREATE TABLE `events_waits_current` (
  `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.',
  `SPINS` int(10) unsigned DEFAULT NULL COMMENT 'Number of spin rounds for a mutex, or NULL if spin rounds are not used, or spinning is not instrumented.',
  `OBJECT_SCHEMA` varchar(64) DEFAULT NULL COMMENT 'Name of the schema that contains the table for table I/O objects, otherwise NULL for file I/O and synchronization objects.',
  `OBJECT_NAME` varchar(512) DEFAULT NULL COMMENT 'File name for file I/O objects, table name for table I/O objects, the socket''s IP:PORT value for a socket object or NULL for a synchronization object.',
  `INDEX_NAME` varchar(64) DEFAULT NULL COMMENT 'Name of the index, PRIMARY for the primary key, or NULL for no index used.',
  `OBJECT_TYPE` varchar(64) DEFAULT NULL COMMENT 'FILE for a file object, TABLE or TEMPORARY TABLE for a table object, or NULL for a synchronization object.',
  `OBJECT_INSTANCE_BEGIN` bigint(20) unsigned NOT NULL COMMENT 'Address in memory of the object.',
  `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 statement, stage or wait.',
  `OPERATION` varchar(32) NOT NULL COMMENT 'Operation type, for example read, write or lock',
  `NUMBER_OF_BYTES` bigint(20) DEFAULT NULL COMMENT 'Number of bytes that the operation read or wrote, or NULL for table I/O waits.',
  `FLAGS` int(10) unsigned DEFAULT NULL COMMENT 'Reserved for use in the future.'
)

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: ... CREATE TABLE `events_waits_current` ( `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.', `SPINS` int(10) unsigned DEFAULT NULL COMMENT 'Number of spin rounds for a mutex, or NULL if spin rounds are not used, or spinning is not instrumented.', `OBJECT_SCHEMA` varchar(64) DEFAULT NULL COMMENT 'Name of the schema that contains the table for table I/O objects, otherwise NULL for file I/O and synchronization objects.', `OBJECT_NAME` varchar(512) DEFAULT NULL COMMENT 'File name for file I/O objects, table name for table I/O objects, the socket''s IP:PORT value for a socket object or NULL for a synchronization object.', `INDEX_NAME` varchar(64) DEFAULT NULL COMMENT 'Name of the index, PRIMARY for the primary key, or NULL for no index used.', `OBJECT_TYPE` varchar(64) DEFAULT NULL COMMENT 'FILE for a file object, TABLE or TEMPORARY TABLE for a table object, or NULL for a synchronization object.', `OBJECT_INSTANCE_BEGIN` bigint(20) unsigned NOT NULL COMMENT 'Address in memory of the object.', `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 statement, stage or wait.', `OPERATION` varchar(32) NOT NULL COMMENT 'Operation type, for example read, write or lock', `NUMBER_OF_BYTES` bigint(20) DEFAULT NULL COMMENT 'Number of bytes that the operation read or wrote, or NULL for table I/O waits.', `FLAGS` int(10) unsigned DEFAULT NULL COMMENT 'Reserved for use in the future.' )
10.6 Community	Present starting in MariaDB Community Server 10.6.0. Schema changed in MariaDB Community Server 10.6.5: ... CREATE TABLE `events_waits_current` ( `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.', `SPINS` int(10) unsigned DEFAULT NULL COMMENT 'Number of spin rounds for a mutex, or NULL if spin rounds are not used, or spinning is not instrumented.', `OBJECT_SCHEMA` varchar(64) DEFAULT NULL COMMENT 'Name of the schema that contains the table for table I/O objects, otherwise NULL for file I/O and synchronization objects.', `OBJECT_NAME` varchar(512) DEFAULT NULL COMMENT 'File name for file I/O objects, table name for table I/O objects, the socket''s IP:PORT value for a socket object or NULL for a synchronization object.', `INDEX_NAME` varchar(64) DEFAULT NULL COMMENT 'Name of the index, PRIMARY for the primary key, or NULL for no index used.', `OBJECT_TYPE` varchar(64) DEFAULT NULL COMMENT 'FILE for a file object, TABLE or TEMPORARY TABLE for a table object, or NULL for a synchronization object.', `OBJECT_INSTANCE_BEGIN` bigint(20) unsigned NOT NULL COMMENT 'Address in memory of the object.', `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 statement, stage or wait.', `OPERATION` varchar(32) NOT NULL COMMENT 'Operation type, for example read, write or lock', `NUMBER_OF_BYTES` bigint(20) DEFAULT NULL COMMENT 'Number of bytes that the operation read or wrote, or NULL for table I/O waits.', `FLAGS` int(10) unsigned DEFAULT NULL COMMENT 'Reserved for use in the future.' )
10.5 Enterprise	Schema changed in MariaDB Enterprise Server 10.5.3-1: ... CREATE TABLE `events_waits_current` ( `THREAD_ID` bigint(20) unsigned NOT NULL, `EVENT_ID` bigint(20) unsigned NOT NULL, `END_EVENT_ID` bigint(20) unsigned DEFAULT NULL, `EVENT_NAME` varchar(128) NOT NULL, `SOURCE` varchar(64) DEFAULT NULL, `TIMER_START` bigint(20) unsigned DEFAULT NULL, `TIMER_END` bigint(20) unsigned DEFAULT NULL, `TIMER_WAIT` bigint(20) unsigned DEFAULT NULL, `SPINS` int(10) unsigned DEFAULT NULL, `OBJECT_SCHEMA` varchar(64) DEFAULT NULL, `OBJECT_NAME` varchar(512) DEFAULT NULL, `INDEX_NAME` varchar(64) DEFAULT NULL, `OBJECT_TYPE` varchar(64) DEFAULT NULL, `OBJECT_INSTANCE_BEGIN` bigint(20) unsigned NOT NULL, `NESTING_EVENT_ID` bigint(20) unsigned DEFAULT NULL, `NESTING_EVENT_TYPE` enum('TRANSACTION','STATEMENT','STAGE','WAIT') DEFAULT NULL, `OPERATION` varchar(32) NOT NULL, `NUMBER_OF_BYTES` bigint(20) DEFAULT NULL, `FLAGS` int(10) unsigned DEFAULT NULL ) Schema changed in MariaDB Enterprise Server 10.5.13-9: ... CREATE TABLE `events_waits_current` ( `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.', `SPINS` int(10) unsigned DEFAULT NULL COMMENT 'Number of spin rounds for a mutex, or NULL if spin rounds are not used, or spinning is not instrumented.', `OBJECT_SCHEMA` varchar(64) DEFAULT NULL COMMENT 'Name of the schema that contains the table for table I/O objects, otherwise NULL for file I/O and synchronization objects.', `OBJECT_NAME` varchar(512) DEFAULT NULL COMMENT 'File name for file I/O objects, table name for table I/O objects, the socket''s IP:PORT value for a socket object or NULL for a synchronization object.', `INDEX_NAME` varchar(64) DEFAULT NULL COMMENT 'Name of the index, PRIMARY for the primary key, or NULL for no index used.', `OBJECT_TYPE` varchar(64) DEFAULT NULL COMMENT 'FILE for a file object, TABLE or TEMPORARY TABLE for a table object, or NULL for a synchronization object.', `OBJECT_INSTANCE_BEGIN` bigint(20) unsigned NOT NULL COMMENT 'Address in memory of the object.', `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 statement, stage or wait.', `OPERATION` varchar(32) NOT NULL COMMENT 'Operation type, for example read, write or lock', `NUMBER_OF_BYTES` bigint(20) DEFAULT NULL COMMENT 'Number of bytes that the operation read or wrote, or NULL for table I/O waits.', `FLAGS` int(10) unsigned DEFAULT NULL COMMENT 'Reserved for use in the future.' )
10.5 Community	Present starting in MariaDB Community Server 10.5.0. Schema changed in MariaDB Community Server 10.5.2: ... CREATE TABLE `events_waits_current` ( `THREAD_ID` bigint(20) unsigned NOT NULL, `EVENT_ID` bigint(20) unsigned NOT NULL, `END_EVENT_ID` bigint(20) unsigned DEFAULT NULL, `EVENT_NAME` varchar(128) NOT NULL, `SOURCE` varchar(64) DEFAULT NULL, `TIMER_START` bigint(20) unsigned DEFAULT NULL, `TIMER_END` bigint(20) unsigned DEFAULT NULL, `TIMER_WAIT` bigint(20) unsigned DEFAULT NULL, `SPINS` int(10) unsigned DEFAULT NULL, `OBJECT_SCHEMA` varchar(64) DEFAULT NULL, `OBJECT_NAME` varchar(512) DEFAULT NULL, `INDEX_NAME` varchar(64) DEFAULT NULL, `OBJECT_TYPE` varchar(64) DEFAULT NULL, `OBJECT_INSTANCE_BEGIN` bigint(20) unsigned NOT NULL, `NESTING_EVENT_ID` bigint(20) unsigned DEFAULT NULL, `NESTING_EVENT_TYPE` enum('TRANSACTION','STATEMENT','STAGE','WAIT') DEFAULT NULL, `OPERATION` varchar(32) NOT NULL, `NUMBER_OF_BYTES` bigint(20) DEFAULT NULL, `FLAGS` int(10) unsigned DEFAULT NULL ) Schema changed in MariaDB Community Server 10.5.13: ... CREATE TABLE `events_waits_current` ( `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.', `SPINS` int(10) unsigned DEFAULT NULL COMMENT 'Number of spin rounds for a mutex, or NULL if spin rounds are not used, or spinning is not instrumented.', `OBJECT_SCHEMA` varchar(64) DEFAULT NULL COMMENT 'Name of the schema that contains the table for table I/O objects, otherwise NULL for file I/O and synchronization objects.', `OBJECT_NAME` varchar(512) DEFAULT NULL COMMENT 'File name for file I/O objects, table name for table I/O objects, the socket''s IP:PORT value for a socket object or NULL for a synchronization object.', `INDEX_NAME` varchar(64) DEFAULT NULL COMMENT 'Name of the index, PRIMARY for the primary key, or NULL for no index used.', `OBJECT_TYPE` varchar(64) DEFAULT NULL COMMENT 'FILE for a file object, TABLE or TEMPORARY TABLE for a table object, or NULL for a synchronization object.', `OBJECT_INSTANCE_BEGIN` bigint(20) unsigned NOT NULL COMMENT 'Address in memory of the object.', `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 statement, stage or wait.', `OPERATION` varchar(32) NOT NULL COMMENT 'Operation type, for example read, write or lock', `NUMBER_OF_BYTES` bigint(20) DEFAULT NULL COMMENT 'Number of bytes that the operation read or wrote, or NULL for table I/O waits.', `FLAGS` int(10) unsigned DEFAULT NULL COMMENT 'Reserved for use in the future.' )
10.4 Enterprise	Present starting in MariaDB Enterprise Server 10.4.6-1. Schema changed in MariaDB Community Server 10.4.22-14: ... CREATE TABLE `events_waits_current` ( `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.', `SPINS` int(10) unsigned DEFAULT NULL COMMENT 'Number of spin rounds for a mutex, or NULL if spin rounds are not used, or spinning is not instrumented.', `OBJECT_SCHEMA` varchar(64) DEFAULT NULL COMMENT 'Name of the schema that contains the table for table I/O objects, otherwise NULL for file I/O and synchronization objects.', `OBJECT_NAME` varchar(512) DEFAULT NULL COMMENT 'File name for file I/O objects, table name for table I/O objects, the socket''s IP:PORT value for a socket object or NULL for a synchronization object.', `INDEX_NAME` varchar(64) DEFAULT NULL COMMENT 'Name of the index, PRIMARY for the primary key, or NULL for no index used.', `OBJECT_TYPE` varchar(64) DEFAULT NULL COMMENT 'FILE for a file object, TABLE or TEMPORARY TABLE for a table object, or NULL for a synchronization object.', `OBJECT_INSTANCE_BEGIN` bigint(20) unsigned NOT NULL COMMENT 'Address in memory of the object.', `NESTING_EVENT_ID` bigint(20) unsigned DEFAULT NULL COMMENT 'EVENT_ID of event within which this event nests.', `NESTING_EVENT_TYPE` enum('STATEMENT','STAGE','WAIT') DEFAULT NULL COMMENT 'Nesting event type. Either statement, stage or wait.', `OPERATION` varchar(32) NOT NULL COMMENT 'Operation type, for example read, write or lock', `NUMBER_OF_BYTES` bigint(20) DEFAULT NULL COMMENT 'Number of bytes that the operation read or wrote, or NULL for table I/O waits.', `FLAGS` int(10) unsigned DEFAULT NULL COMMENT 'Reserved for use in the future.' )
10.4 Community	Present starting in MariaDB Community Server 10.4.0. Schema changed in MariaDB Community Server 10.4.22: ... CREATE TABLE `events_waits_current` ( `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.', `SPINS` int(10) unsigned DEFAULT NULL COMMENT 'Number of spin rounds for a mutex, or NULL if spin rounds are not used, or spinning is not instrumented.', `OBJECT_SCHEMA` varchar(64) DEFAULT NULL COMMENT 'Name of the schema that contains the table for table I/O objects, otherwise NULL for file I/O and synchronization objects.', `OBJECT_NAME` varchar(512) DEFAULT NULL COMMENT 'File name for file I/O objects, table name for table I/O objects, the socket''s IP:PORT value for a socket object or NULL for a synchronization object.', `INDEX_NAME` varchar(64) DEFAULT NULL COMMENT 'Name of the index, PRIMARY for the primary key, or NULL for no index used.', `OBJECT_TYPE` varchar(64) DEFAULT NULL COMMENT 'FILE for a file object, TABLE or TEMPORARY TABLE for a table object, or NULL for a synchronization object.', `OBJECT_INSTANCE_BEGIN` bigint(20) unsigned NOT NULL COMMENT 'Address in memory of the object.', `NESTING_EVENT_ID` bigint(20) unsigned DEFAULT NULL COMMENT 'EVENT_ID of event within which this event nests.', `NESTING_EVENT_TYPE` enum('STATEMENT','STAGE','WAIT') DEFAULT NULL COMMENT 'Nesting event type. Either statement, stage or wait.', `OPERATION` varchar(32) NOT NULL COMMENT 'Operation type, for example read, write or lock', `NUMBER_OF_BYTES` bigint(20) DEFAULT NULL COMMENT 'Number of bytes that the operation read or wrote, or NULL for table I/O waits.', `FLAGS` int(10) unsigned DEFAULT NULL COMMENT 'Reserved for use in the future.' )
10.3 Enterprise	Present starting in MariaDB Enterprise Server 10.3.16-1. Schema changed in MariaDB Community Server 10.3.32-14: ... CREATE TABLE `events_waits_current` ( `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.', `SPINS` int(10) unsigned DEFAULT NULL COMMENT 'Number of spin rounds for a mutex, or NULL if spin rounds are not used, or spinning is not instrumented.', `OBJECT_SCHEMA` varchar(64) DEFAULT NULL COMMENT 'Name of the schema that contains the table for table I/O objects, otherwise NULL for file I/O and synchronization objects.', `OBJECT_NAME` varchar(512) DEFAULT NULL COMMENT 'File name for file I/O objects, table name for table I/O objects, the socket''s IP:PORT value for a socket object or NULL for a synchronization object.', `INDEX_NAME` varchar(64) DEFAULT NULL COMMENT 'Name of the index, PRIMARY for the primary key, or NULL for no index used.', `OBJECT_TYPE` varchar(64) DEFAULT NULL COMMENT 'FILE for a file object, TABLE or TEMPORARY TABLE for a table object, or NULL for a synchronization object.', `OBJECT_INSTANCE_BEGIN` bigint(20) unsigned NOT NULL COMMENT 'Address in memory of the object.', `NESTING_EVENT_ID` bigint(20) unsigned DEFAULT NULL COMMENT 'EVENT_ID of event within which this event nests.', `NESTING_EVENT_TYPE` enum('STATEMENT','STAGE','WAIT') DEFAULT NULL COMMENT 'Nesting event type. Either statement, stage or wait.', `OPERATION` varchar(32) NOT NULL COMMENT 'Operation type, for example read, write or lock', `NUMBER_OF_BYTES` bigint(20) DEFAULT NULL COMMENT 'Number of bytes that the operation read or wrote, or NULL for table I/O waits.', `FLAGS` int(10) unsigned DEFAULT NULL COMMENT 'Reserved for use in the future.' )
10.3 Community	Present starting in MariaDB Community Server 10.3.0. Schema changed in MariaDB Community Server 10.3.32: ... CREATE TABLE `events_waits_current` ( `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.', `SPINS` int(10) unsigned DEFAULT NULL COMMENT 'Number of spin rounds for a mutex, or NULL if spin rounds are not used, or spinning is not instrumented.', `OBJECT_SCHEMA` varchar(64) DEFAULT NULL COMMENT 'Name of the schema that contains the table for table I/O objects, otherwise NULL for file I/O and synchronization objects.', `OBJECT_NAME` varchar(512) DEFAULT NULL COMMENT 'File name for file I/O objects, table name for table I/O objects, the socket''s IP:PORT value for a socket object or NULL for a synchronization object.', `INDEX_NAME` varchar(64) DEFAULT NULL COMMENT 'Name of the index, PRIMARY for the primary key, or NULL for no index used.', `OBJECT_TYPE` varchar(64) DEFAULT NULL COMMENT 'FILE for a file object, TABLE or TEMPORARY TABLE for a table object, or NULL for a synchronization object.', `OBJECT_INSTANCE_BEGIN` bigint(20) unsigned NOT NULL COMMENT 'Address in memory of the object.', `NESTING_EVENT_ID` bigint(20) unsigned DEFAULT NULL COMMENT 'EVENT_ID of event within which this event nests.', `NESTING_EVENT_TYPE` enum('STATEMENT','STAGE','WAIT') DEFAULT NULL COMMENT 'Nesting event type. Either statement, stage or wait.', `OPERATION` varchar(32) NOT NULL COMMENT 'Operation type, for example read, write or lock', `NUMBER_OF_BYTES` bigint(20) DEFAULT NULL COMMENT 'Number of bytes that the operation read or wrote, or NULL for table I/O waits.', `FLAGS` int(10) unsigned DEFAULT NULL COMMENT 'Reserved for use in the future.' )
10.2 Enterprise	Present starting in MariaDB Enterprise Server 10.2.25-1. Schema changed in MariaDB Community Server 10.2.41-14: ... CREATE TABLE `events_waits_current` ( `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.', `SPINS` int(10) unsigned DEFAULT NULL COMMENT 'Number of spin rounds for a mutex, or NULL if spin rounds are not used, or spinning is not instrumented.', `OBJECT_SCHEMA` varchar(64) DEFAULT NULL COMMENT 'Name of the schema that contains the table for table I/O objects, otherwise NULL for file I/O and synchronization objects.', `OBJECT_NAME` varchar(512) DEFAULT NULL COMMENT 'File name for file I/O objects, table name for table I/O objects, the socket''s IP:PORT value for a socket object or NULL for a synchronization object.', `INDEX_NAME` varchar(64) DEFAULT NULL COMMENT 'Name of the index, PRIMARY for the primary key, or NULL for no index used.', `OBJECT_TYPE` varchar(64) DEFAULT NULL COMMENT 'FILE for a file object, TABLE or TEMPORARY TABLE for a table object, or NULL for a synchronization object.', `OBJECT_INSTANCE_BEGIN` bigint(20) unsigned NOT NULL COMMENT 'Address in memory of the object.', `NESTING_EVENT_ID` bigint(20) unsigned DEFAULT NULL COMMENT 'EVENT_ID of event within which this event nests.', `NESTING_EVENT_TYPE` enum('STATEMENT','STAGE','WAIT') DEFAULT NULL COMMENT 'Nesting event type. Either statement, stage or wait.', `OPERATION` varchar(32) NOT NULL COMMENT 'Operation type, for example read, write or lock', `NUMBER_OF_BYTES` bigint(20) DEFAULT NULL COMMENT 'Number of bytes that the operation read or wrote, or NULL for table I/O waits.', `FLAGS` int(10) unsigned DEFAULT NULL COMMENT 'Reserved for use in the future.' )
10.2 Community	Present starting in MariaDB Community Server 10.2.0. Schema changed in MariaDB Community Server 10.2.41: ... CREATE TABLE `events_waits_current` ( `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.', `SPINS` int(10) unsigned DEFAULT NULL COMMENT 'Number of spin rounds for a mutex, or NULL if spin rounds are not used, or spinning is not instrumented.', `OBJECT_SCHEMA` varchar(64) DEFAULT NULL COMMENT 'Name of the schema that contains the table for table I/O objects, otherwise NULL for file I/O and synchronization objects.', `OBJECT_NAME` varchar(512) DEFAULT NULL COMMENT 'File name for file I/O objects, table name for table I/O objects, the socket''s IP:PORT value for a socket object or NULL for a synchronization object.', `INDEX_NAME` varchar(64) DEFAULT NULL COMMENT 'Name of the index, PRIMARY for the primary key, or NULL for no index used.', `OBJECT_TYPE` varchar(64) DEFAULT NULL COMMENT 'FILE for a file object, TABLE or TEMPORARY TABLE for a table object, or NULL for a synchronization object.', `OBJECT_INSTANCE_BEGIN` bigint(20) unsigned NOT NULL COMMENT 'Address in memory of the object.', `NESTING_EVENT_ID` bigint(20) unsigned DEFAULT NULL COMMENT 'EVENT_ID of event within which this event nests.', `NESTING_EVENT_TYPE` enum('STATEMENT','STAGE','WAIT') DEFAULT NULL COMMENT 'Nesting event type. Either statement, stage or wait.', `OPERATION` varchar(32) NOT NULL COMMENT 'Operation type, for example read, write or lock', `NUMBER_OF_BYTES` bigint(20) DEFAULT NULL COMMENT 'Number of bytes that the operation read or wrote, or NULL for table I/O waits.', `FLAGS` int(10) unsigned DEFAULT NULL COMMENT 'Reserved for use in the future.' )

EXTERNAL REFERENCES

Additional information on this topic may be found in the MariaDB Public Knowledge Base.

Information specific to MariaDB SkySQL can be found on the events_waits_current page in the SkySQL Documentation.