COLUMNS

This page is part of MariaDB's Enterprise Documentation.

The parent of this page is: Information Schema

Topics on this page:

Overview
DETAILS
- SCHEMA
CHANGE HISTORY
EXTERNAL REFERENCES

Overview

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

DETAILS

SCHEMA

CREATE TEMPORARY TABLE `COLUMNS` (
  `TABLE_CATALOG` varchar(512) NOT NULL,
  `TABLE_SCHEMA` varchar(64) NOT NULL,
  `TABLE_NAME` varchar(64) NOT NULL,
  `COLUMN_NAME` varchar(64) NOT NULL,
  `ORDINAL_POSITION` bigint(21) unsigned NOT NULL,
  `COLUMN_DEFAULT` longtext,
  `IS_NULLABLE` varchar(3) NOT NULL,
  `DATA_TYPE` varchar(64) NOT NULL,
  `CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned,
  `CHARACTER_OCTET_LENGTH` bigint(21) unsigned,
  `NUMERIC_PRECISION` bigint(21) unsigned,
  `NUMERIC_SCALE` bigint(21) unsigned,
  `DATETIME_PRECISION` bigint(21) unsigned,
  `CHARACTER_SET_NAME` varchar(32),
  `COLLATION_NAME` varchar(32),
  `COLUMN_TYPE` longtext NOT NULL,
  `COLUMN_KEY` varchar(3) NOT NULL,
  `EXTRA` varchar(80) NOT NULL,
  `PRIVILEGES` varchar(80) NOT NULL,
  `COLUMN_COMMENT` varchar(1024) NOT NULL,
  `IS_GENERATED` varchar(6) NOT NULL,
  `GENERATION_EXPRESSION` longtext
)

CHANGE HISTORY

Release Series	History
10.6 Enterprise	Present starting in MariaDB Enterprise Server 10.6.4-1. Schema changed in MariaDB Enterprise Server 10.6.7-3: ... CREATE TEMPORARY TABLE `COLUMNS` ( `TABLE_CATALOG` varchar(512) NOT NULL DEFAULT '', `TABLE_SCHEMA` varchar(64) NOT NULL DEFAULT '', `TABLE_NAME` varchar(64) NOT NULL DEFAULT '', `COLUMN_NAME` varchar(64) NOT NULL DEFAULT '', `ORDINAL_POSITION` bigint(21) unsigned NOT NULL DEFAULT 0, `COLUMN_DEFAULT` longtext DEFAULT NULL, `IS_NULLABLE` varchar(3) NOT NULL DEFAULT '', `DATA_TYPE` varchar(64) NOT NULL DEFAULT '', `CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned DEFAULT NULL, `CHARACTER_OCTET_LENGTH` bigint(21) unsigned DEFAULT NULL, `NUMERIC_PRECISION` bigint(21) unsigned DEFAULT NULL, `NUMERIC_SCALE` bigint(21) unsigned DEFAULT NULL, `DATETIME_PRECISION` bigint(21) unsigned DEFAULT NULL, `CHARACTER_SET_NAME` varchar(32) DEFAULT NULL,), `COLLATION_NAME` varchar(32) DEFAULT NULL,), `COLUMN_TYPE` longtext NOT NULL DEFAULT '', `COLUMN_KEY` varchar(3) NOT NULL DEFAULT '', `EXTRA` varchar(30) NOT NULL DEFAULT '', `PRIVILEGES` varchar(80) NOT NULL DEFAULT '', `COLUMN_COMMENT` varchar(1024) NOT NULL DEFAULT '', `IS_GENERATED` varchar(6) NOT NULL DEFAULT '', `GENERATION_EXPRESSION` longtext DEFAULT NULL ) Schema changed in MariaDB Enterprise Server 10.6.8-4: ... CREATE TEMPORARY TABLE `COLUMNS` ( `TABLE_CATALOG` varchar(512) NOT NULL, `TABLE_SCHEMA` varchar(64) NOT NULL, `TABLE_NAME` varchar(64) NOT NULL, `COLUMN_NAME` varchar(64) NOT NULL, `ORDINAL_POSITION` bigint(21) unsigned NOT NULL, `COLUMN_DEFAULT` longtext, `IS_NULLABLE` varchar(3) NOT NULL, `DATA_TYPE` varchar(64) NOT NULL, `CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned, `CHARACTER_OCTET_LENGTH` bigint(21) unsigned, `NUMERIC_PRECISION` bigint(21) unsigned, `NUMERIC_SCALE` bigint(21) unsigned, `DATETIME_PRECISION` bigint(21) unsigned, `CHARACTER_SET_NAME` varchar(32), `COLLATION_NAME` varchar(32), `COLUMN_TYPE` longtext NOT NULL, `COLUMN_KEY` varchar(3) NOT NULL, `EXTRA` varchar(3080) NOT NULL, `PRIVILEGES` varchar(80) NOT NULL, `COLUMN_COMMENT` varchar(1024) NOT NULL, `IS_GENERATED` varchar(6) NOT NULL, `GENERATION_EXPRESSION` longtext )
10.6 Community	Present starting in MariaDB Community Server 10.6.0. Schema changed in MariaDB Community Server 10.6.6: ... CREATE TEMPORARY TABLE `COLUMNS` ( `TABLE_CATALOG` varchar(512) NOT NULL DEFAULT '', `TABLE_SCHEMA` varchar(64) NOT NULL DEFAULT '', `TABLE_NAME` varchar(64) NOT NULL DEFAULT '', `COLUMN_NAME` varchar(64) NOT NULL DEFAULT '', `ORDINAL_POSITION` bigint(21) unsigned NOT NULL DEFAULT 0, `COLUMN_DEFAULT` longtext DEFAULT NULL, `IS_NULLABLE` varchar(3) NOT NULL DEFAULT '', `DATA_TYPE` varchar(64) NOT NULL DEFAULT '', `CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned DEFAULT NULL, `CHARACTER_OCTET_LENGTH` bigint(21) unsigned DEFAULT NULL, `NUMERIC_PRECISION` bigint(21) unsigned DEFAULT NULL, `NUMERIC_SCALE` bigint(21) unsigned DEFAULT NULL, `DATETIME_PRECISION` bigint(21) unsigned DEFAULT NULL, `CHARACTER_SET_NAME` varchar(32) DEFAULT NULL,), `COLLATION_NAME` varchar(32) DEFAULT NULL,), `COLUMN_TYPE` longtext NOT NULL DEFAULT '', `COLUMN_KEY` varchar(3) NOT NULL DEFAULT '', `EXTRA` varchar(30) NOT NULL DEFAULT '', `PRIVILEGES` varchar(80) NOT NULL DEFAULT '', `COLUMN_COMMENT` varchar(1024) NOT NULL DEFAULT '', `IS_GENERATED` varchar(6) NOT NULL DEFAULT '', `GENERATION_EXPRESSION` longtext DEFAULT NULL )
10.5 Enterprise	Present starting in MariaDB Enterprise Server 10.5.3-1. Schema changed in MariaDB Community Server 10.5.15-10: ... CREATE TEMPORARY TABLE `COLUMNS` ( `TABLE_CATALOG` varchar(512) NOT NULL DEFAULT '', `TABLE_SCHEMA` varchar(64) NOT NULL DEFAULT '', `TABLE_NAME` varchar(64) NOT NULL DEFAULT '', `COLUMN_NAME` varchar(64) NOT NULL DEFAULT '', `ORDINAL_POSITION` bigint(21) unsigned NOT NULL DEFAULT 0, `COLUMN_DEFAULT` longtext DEFAULT NULL, `IS_NULLABLE` varchar(3) NOT NULL DEFAULT '', `DATA_TYPE` varchar(64) NOT NULL DEFAULT '', `CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned DEFAULT NULL, `CHARACTER_OCTET_LENGTH` bigint(21) unsigned DEFAULT NULL, `NUMERIC_PRECISION` bigint(21) unsigned DEFAULT NULL, `NUMERIC_SCALE` bigint(21) unsigned DEFAULT NULL, `DATETIME_PRECISION` bigint(21) unsigned DEFAULT NULL, `CHARACTER_SET_NAME` varchar(32) DEFAULT NULL,), `COLLATION_NAME` varchar(32) DEFAULT NULL,), `COLUMN_TYPE` longtext NOT NULL DEFAULT '', `COLUMN_KEY` varchar(3) NOT NULL DEFAULT '', `EXTRA` varchar(30) NOT NULL DEFAULT '', `PRIVILEGES` varchar(80) NOT NULL DEFAULT '', `COLUMN_COMMENT` varchar(1024) NOT NULL DEFAULT '', `IS_GENERATED` varchar(6) NOT NULL DEFAULT '', `GENERATION_EXPRESSION` longtext DEFAULT NULL ) Schema changed in MariaDB Community Server 10.5.16-11: ... CREATE TEMPORARY TABLE `COLUMNS` ( `TABLE_CATALOG` varchar(512) NOT NULL, `TABLE_SCHEMA` varchar(64) NOT NULL, `TABLE_NAME` varchar(64) NOT NULL, `COLUMN_NAME` varchar(64) NOT NULL, `ORDINAL_POSITION` bigint(21) unsigned NOT NULL, `COLUMN_DEFAULT` longtext, `IS_NULLABLE` varchar(3) NOT NULL, `DATA_TYPE` varchar(64) NOT NULL, `CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned, `CHARACTER_OCTET_LENGTH` bigint(21) unsigned, `NUMERIC_PRECISION` bigint(21) unsigned, `NUMERIC_SCALE` bigint(21) unsigned, `DATETIME_PRECISION` bigint(21) unsigned, `CHARACTER_SET_NAME` varchar(32), `COLLATION_NAME` varchar(32), `COLUMN_TYPE` longtext NOT NULL, `COLUMN_KEY` varchar(3) NOT NULL, `EXTRA` varchar(3080) NOT NULL, `PRIVILEGES` varchar(80) NOT NULL, `COLUMN_COMMENT` varchar(1024) NOT NULL, `IS_GENERATED` varchar(6) NOT NULL, `GENERATION_EXPRESSION` longtext )
10.5 Community	Present starting in MariaDB Community Server 10.5.0. Schema changed in MariaDB Community Server 10.5.14: ... CREATE TEMPORARY TABLE `COLUMNS` ( `TABLE_CATALOG` varchar(512) NOT NULL DEFAULT '', `TABLE_SCHEMA` varchar(64) NOT NULL DEFAULT '', `TABLE_NAME` varchar(64) NOT NULL DEFAULT '', `COLUMN_NAME` varchar(64) NOT NULL DEFAULT '', `ORDINAL_POSITION` bigint(21) unsigned NOT NULL DEFAULT 0, `COLUMN_DEFAULT` longtext DEFAULT NULL, `IS_NULLABLE` varchar(3) NOT NULL DEFAULT '', `DATA_TYPE` varchar(64) NOT NULL DEFAULT '', `CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned DEFAULT NULL, `CHARACTER_OCTET_LENGTH` bigint(21) unsigned DEFAULT NULL, `NUMERIC_PRECISION` bigint(21) unsigned DEFAULT NULL, `NUMERIC_SCALE` bigint(21) unsigned DEFAULT NULL, `DATETIME_PRECISION` bigint(21) unsigned DEFAULT NULL, `CHARACTER_SET_NAME` varchar(32) DEFAULT NULL,), `COLLATION_NAME` varchar(32) DEFAULT NULL,), `COLUMN_TYPE` longtext NOT NULL DEFAULT '', `COLUMN_KEY` varchar(3) NOT NULL DEFAULT '', `EXTRA` varchar(30) NOT NULL DEFAULT '', `PRIVILEGES` varchar(80) NOT NULL DEFAULT '', `COLUMN_COMMENT` varchar(1024) NOT NULL DEFAULT '', `IS_GENERATED` varchar(6) NOT NULL DEFAULT '', `GENERATION_EXPRESSION` longtext DEFAULT NULL )
10.4 Enterprise	Present starting in MariaDB Enterprise Server 10.4.6-1. Schema changed in MariaDB Community Server 10.4.24-15: ... CREATE TEMPORARY TABLE `COLUMNS` ( `TABLE_CATALOG` varchar(512) NOT NULL DEFAULT '', `TABLE_SCHEMA` varchar(64) NOT NULL DEFAULT '', `TABLE_NAME` varchar(64) NOT NULL DEFAULT '', `COLUMN_NAME` varchar(64) NOT NULL DEFAULT '', `ORDINAL_POSITION` bigint(21) unsigned NOT NULL DEFAULT 0, `COLUMN_DEFAULT` longtext DEFAULT NULL, `IS_NULLABLE` varchar(3) NOT NULL DEFAULT '', `DATA_TYPE` varchar(64) NOT NULL DEFAULT '', `CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned DEFAULT NULL, `CHARACTER_OCTET_LENGTH` bigint(21) unsigned DEFAULT NULL, `NUMERIC_PRECISION` bigint(21) unsigned DEFAULT NULL, `NUMERIC_SCALE` bigint(21) unsigned DEFAULT NULL, `DATETIME_PRECISION` bigint(21) unsigned DEFAULT NULL, `CHARACTER_SET_NAME` varchar(32) DEFAULT NULL,), `COLLATION_NAME` varchar(32) DEFAULT NULL,), `COLUMN_TYPE` longtext NOT NULL DEFAULT '', `COLUMN_KEY` varchar(3) NOT NULL DEFAULT '', `EXTRA` varchar(30) NOT NULL DEFAULT '', `PRIVILEGES` varchar(80) NOT NULL DEFAULT '', `COLUMN_COMMENT` varchar(1024) NOT NULL DEFAULT '', `IS_GENERATED` varchar(6) NOT NULL DEFAULT '', `GENERATION_EXPRESSION` longtext DEFAULT NULL ) Schema changed in MariaDB Community Server 10.4.25-16: ... CREATE TEMPORARY TABLE `COLUMNS` ( `TABLE_CATALOG` varchar(512) NOT NULL, `TABLE_SCHEMA` varchar(64) NOT NULL, `TABLE_NAME` varchar(64) NOT NULL, `COLUMN_NAME` varchar(64) NOT NULL, `ORDINAL_POSITION` bigint(21) unsigned NOT NULL, `COLUMN_DEFAULT` longtext, `IS_NULLABLE` varchar(3) NOT NULL, `DATA_TYPE` varchar(64) NOT NULL, `CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned, `CHARACTER_OCTET_LENGTH` bigint(21) unsigned, `NUMERIC_PRECISION` bigint(21) unsigned, `NUMERIC_SCALE` bigint(21) unsigned, `DATETIME_PRECISION` bigint(21) unsigned, `CHARACTER_SET_NAME` varchar(32), `COLLATION_NAME` varchar(32), `COLUMN_TYPE` longtext NOT NULL, `COLUMN_KEY` varchar(3) NOT NULL, `EXTRA` varchar(3080) NOT NULL, `PRIVILEGES` varchar(80) NOT NULL, `COLUMN_COMMENT` varchar(1024) NOT NULL, `IS_GENERATED` varchar(6) NOT NULL, `GENERATION_EXPRESSION` longtext )
10.4 Community	Present starting in MariaDB Community Server 10.4.0. Schema changed in MariaDB Community Server 10.4.23: ... CREATE TEMPORARY TABLE `COLUMNS` ( `TABLE_CATALOG` varchar(512) NOT NULL DEFAULT '', `TABLE_SCHEMA` varchar(64) NOT NULL DEFAULT '', `TABLE_NAME` varchar(64) NOT NULL DEFAULT '', `COLUMN_NAME` varchar(64) NOT NULL DEFAULT '', `ORDINAL_POSITION` bigint(21) unsigned NOT NULL DEFAULT 0, `COLUMN_DEFAULT` longtext DEFAULT NULL, `IS_NULLABLE` varchar(3) NOT NULL DEFAULT '', `DATA_TYPE` varchar(64) NOT NULL DEFAULT '', `CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned DEFAULT NULL, `CHARACTER_OCTET_LENGTH` bigint(21) unsigned DEFAULT NULL, `NUMERIC_PRECISION` bigint(21) unsigned DEFAULT NULL, `NUMERIC_SCALE` bigint(21) unsigned DEFAULT NULL, `DATETIME_PRECISION` bigint(21) unsigned DEFAULT NULL, `CHARACTER_SET_NAME` varchar(32) DEFAULT NULL,), `COLLATION_NAME` varchar(32) DEFAULT NULL,), `COLUMN_TYPE` longtext NOT NULL DEFAULT '', `COLUMN_KEY` varchar(3) NOT NULL DEFAULT '', `EXTRA` varchar(30) NOT NULL DEFAULT '', `PRIVILEGES` varchar(80) NOT NULL DEFAULT '', `COLUMN_COMMENT` varchar(1024) NOT NULL DEFAULT '', `IS_GENERATED` varchar(6) NOT NULL DEFAULT '', `GENERATION_EXPRESSION` longtext DEFAULT NULL )
10.3 Enterprise	Present starting in MariaDB Enterprise Server 10.3.16-1. Schema changed in MariaDB Community Server 10.3.34-15: ... CREATE TEMPORARY TABLE `COLUMNS` ( `TABLE_CATALOG` varchar(512) NOT NULL DEFAULT '', `TABLE_SCHEMA` varchar(64) NOT NULL DEFAULT '', `TABLE_NAME` varchar(64) NOT NULL DEFAULT '', `COLUMN_NAME` varchar(64) NOT NULL DEFAULT '', `ORDINAL_POSITION` bigint(21) unsigned NOT NULL DEFAULT 0, `COLUMN_DEFAULT` longtext DEFAULT NULL, `IS_NULLABLE` varchar(3) NOT NULL DEFAULT '', `DATA_TYPE` varchar(64) NOT NULL DEFAULT '', `CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned DEFAULT NULL, `CHARACTER_OCTET_LENGTH` bigint(21) unsigned DEFAULT NULL, `NUMERIC_PRECISION` bigint(21) unsigned DEFAULT NULL, `NUMERIC_SCALE` bigint(21) unsigned DEFAULT NULL, `DATETIME_PRECISION` bigint(21) unsigned DEFAULT NULL, `CHARACTER_SET_NAME` varchar(32) DEFAULT NULL,), `COLLATION_NAME` varchar(32) DEFAULT NULL,), `COLUMN_TYPE` longtext NOT NULL DEFAULT '', `COLUMN_KEY` varchar(3) NOT NULL DEFAULT '', `EXTRA` varchar(30) NOT NULL DEFAULT '', `PRIVILEGES` varchar(80) NOT NULL DEFAULT '', `COLUMN_COMMENT` varchar(1024) NOT NULL DEFAULT '', `IS_GENERATED` varchar(6) NOT NULL DEFAULT '', `GENERATION_EXPRESSION` longtext DEFAULT NULL ) Schema changed in MariaDB Community Server 10.3.35-16: ... CREATE TEMPORARY TABLE `COLUMNS` ( `TABLE_CATALOG` varchar(512) NOT NULL, `TABLE_SCHEMA` varchar(64) NOT NULL, `TABLE_NAME` varchar(64) NOT NULL, `COLUMN_NAME` varchar(64) NOT NULL, `ORDINAL_POSITION` bigint(21) unsigned NOT NULL, `COLUMN_DEFAULT` longtext, `IS_NULLABLE` varchar(3) NOT NULL, `DATA_TYPE` varchar(64) NOT NULL, `CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned, `CHARACTER_OCTET_LENGTH` bigint(21) unsigned, `NUMERIC_PRECISION` bigint(21) unsigned, `NUMERIC_SCALE` bigint(21) unsigned, `DATETIME_PRECISION` bigint(21) unsigned, `CHARACTER_SET_NAME` varchar(32), `COLLATION_NAME` varchar(32), `COLUMN_TYPE` longtext NOT NULL, `COLUMN_KEY` varchar(3) NOT NULL, `EXTRA` varchar(3080) NOT NULL, `PRIVILEGES` varchar(80) NOT NULL, `COLUMN_COMMENT` varchar(1024) NOT NULL, `IS_GENERATED` varchar(6) NOT NULL, `GENERATION_EXPRESSION` longtext )
10.3 Community	Present starting in MariaDB Community Server 10.3.0. Schema changed in MariaDB Community Server 10.3.33: ... CREATE TEMPORARY TABLE `COLUMNS` ( `TABLE_CATALOG` varchar(512) NOT NULL DEFAULT '', `TABLE_SCHEMA` varchar(64) NOT NULL DEFAULT '', `TABLE_NAME` varchar(64) NOT NULL DEFAULT '', `COLUMN_NAME` varchar(64) NOT NULL DEFAULT '', `ORDINAL_POSITION` bigint(21) unsigned NOT NULL DEFAULT 0, `COLUMN_DEFAULT` longtext DEFAULT NULL, `IS_NULLABLE` varchar(3) NOT NULL DEFAULT '', `DATA_TYPE` varchar(64) NOT NULL DEFAULT '', `CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned DEFAULT NULL, `CHARACTER_OCTET_LENGTH` bigint(21) unsigned DEFAULT NULL, `NUMERIC_PRECISION` bigint(21) unsigned DEFAULT NULL, `NUMERIC_SCALE` bigint(21) unsigned DEFAULT NULL, `DATETIME_PRECISION` bigint(21) unsigned DEFAULT NULL, `CHARACTER_SET_NAME` varchar(32) DEFAULT NULL,), `COLLATION_NAME` varchar(32) DEFAULT NULL,), `COLUMN_TYPE` longtext NOT NULL DEFAULT '', `COLUMN_KEY` varchar(3) NOT NULL DEFAULT '', `EXTRA` varchar(30) NOT NULL DEFAULT '', `PRIVILEGES` varchar(80) NOT NULL DEFAULT '', `COLUMN_COMMENT` varchar(1024) NOT NULL DEFAULT '', `IS_GENERATED` varchar(6) NOT NULL DEFAULT '', `GENERATION_EXPRESSION` longtext DEFAULT NULL )
10.2 Enterprise	Present starting in MariaDB Enterprise Server 10.2.25-1.
10.2 Community	Present starting in MariaDB Community Server 10.2.0. Schema changed in MariaDB Community Server 10.2.1: ... CREATE TEMPORARY TABLE `COLUMNS` ( `TABLE_CATALOG` varchar(512) NOT NULL DEFAULT '', `TABLE_SCHEMA` varchar(64) NOT NULL DEFAULT '', `TABLE_NAME` varchar(64) NOT NULL DEFAULT '', `COLUMN_NAME` varchar(64) NOT NULL DEFAULT '', `ORDINAL_POSITION` bigint(21) unsigned NOT NULL DEFAULT '0', `COLUMN_DEFAULT` longtext DEFAULT NULL, `IS_NULLABLE` varchar(3) NOT NULL DEFAULT '', `DATA_TYPE` varchar(64) NOT NULL DEFAULT '', `CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned DEFAULT NULL, `CHARACTER_OCTET_LENGTH` bigint(21) unsigned DEFAULT NULL, `NUMERIC_PRECISION` bigint(21) unsigned DEFAULT NULL, `NUMERIC_SCALE` bigint(21) unsigned DEFAULT NULL, `DATETIME_PRECISION` bigint(21) unsigned DEFAULT NULL, `CHARACTER_SET_NAME` varchar(32) DEFAULT NULL, `COLLATION_NAME` varchar(32) DEFAULT NULL, `COLUMN_TYPE` longtext NOT NULL DEFAULT '', `COLUMN_KEY` varchar(3) NOT NULL DEFAULT '', `EXTRA` varchar(27) NOT NULL DEFAULT '', `PRIVILEGES` varchar(80) NOT NULL DEFAULT '', `COLUMN_COMMENT` varchar(1024) NOT NULL DEFAULT '' ) Schema changed in MariaDB Community Server 10.2.2: ... CREATE TEMPORARY TABLE `COLUMNS` ( `TABLE_CATALOG` varchar(512) NOT NULL DEFAULT '', `TABLE_SCHEMA` varchar(64) NOT NULL DEFAULT '', `TABLE_NAME` varchar(64) NOT NULL DEFAULT '', `COLUMN_NAME` varchar(64) NOT NULL DEFAULT '', `ORDINAL_POSITION` bigint(21) unsigned NOT NULL DEFAULT '0'0, `COLUMN_DEFAULT` longtext DEFAULT NULL, `IS_NULLABLE` varchar(3) NOT NULL DEFAULT '', `DATA_TYPE` varchar(64) NOT NULL DEFAULT '', `CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned DEFAULT NULL, `CHARACTER_OCTET_LENGTH` bigint(21) unsigned DEFAULT NULL, `NUMERIC_PRECISION` bigint(21) unsigned DEFAULT NULL, `NUMERIC_SCALE` bigint(21) unsigned DEFAULT NULL, `DATETIME_PRECISION` bigint(21) unsigned DEFAULT NULL, `CHARACTER_SET_NAME` varchar(32) DEFAULT NULL, `COLLATION_NAME` varchar(32) DEFAULT NULL, `COLUMN_TYPE` longtext NOT NULL DEFAULT '', `COLUMN_KEY` varchar(3) NOT NULL DEFAULT '', `EXTRA` varchar(27) NOT NULL DEFAULT '', `PRIVILEGES` varchar(80) NOT NULL DEFAULT '', `COLUMN_COMMENT` varchar(1024) NOT NULL DEFAULT '' ) Schema changed in MariaDB Community Server 10.2.3: ... CREATE TEMPORARY TABLE `COLUMNS` ( `TABLE_CATALOG` varchar(512) NOT NULL DEFAULT '', `TABLE_SCHEMA` varchar(64) NOT NULL DEFAULT '', `TABLE_NAME` varchar(64) NOT NULL DEFAULT '', `COLUMN_NAME` varchar(64) NOT NULL DEFAULT '', `ORDINAL_POSITION` bigint(21) unsigned NOT NULL DEFAULT 0, `COLUMN_DEFAULT` longtext DEFAULT NULL, `IS_NULLABLE` varchar(3) NOT NULL DEFAULT '', `DATA_TYPE` varchar(64) NOT NULL DEFAULT '', `CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned DEFAULT NULL, `CHARACTER_OCTET_LENGTH` bigint(21) unsigned DEFAULT NULL, `NUMERIC_PRECISION` bigint(21) unsigned DEFAULT NULL, `NUMERIC_SCALE` bigint(21) unsigned DEFAULT NULL, `DATETIME_PRECISION` bigint(21) unsigned DEFAULT NULL, `CHARACTER_SET_NAME` varchar(32) DEFAULT NULL, `COLLATION_NAME` varchar(32) DEFAULT NULL, `COLUMN_TYPE` longtext NOT NULL DEFAULT '', `COLUMN_KEY` varchar(3) NOT NULL DEFAULT '', `EXTRA` varchar(2730) NOT NULL DEFAULT '', `PRIVILEGES` varchar(80) NOT NULL DEFAULT '', `COLUMN_COMMENT` varchar(1024) NOT NULL DEFAULT '' ) Schema changed in MariaDB Community Server 10.2.5: ... CREATE TEMPORARY TABLE `COLUMNS` ( `TABLE_CATALOG` varchar(512) NOT NULL DEFAULT '', `TABLE_SCHEMA` varchar(64) NOT NULL DEFAULT '', `TABLE_NAME` varchar(64) NOT NULL DEFAULT '', `COLUMN_NAME` varchar(64) NOT NULL DEFAULT '', `ORDINAL_POSITION` bigint(21) unsigned NOT NULL DEFAULT 0, `COLUMN_DEFAULT` longtext DEFAULT NULL, `IS_NULLABLE` varchar(3) NOT NULL DEFAULT '', `DATA_TYPE` varchar(64) NOT NULL DEFAULT '', `CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned DEFAULT NULL, `CHARACTER_OCTET_LENGTH` bigint(21) unsigned DEFAULT NULL, `NUMERIC_PRECISION` bigint(21) unsigned DEFAULT NULL, `NUMERIC_SCALE` bigint(21) unsigned DEFAULT NULL, `DATETIME_PRECISION` bigint(21) unsigned DEFAULT NULL, `CHARACTER_SET_NAME` varchar(32) DEFAULT NULL, `COLLATION_NAME` varchar(32) DEFAULT NULL, `COLUMN_TYPE` longtext NOT NULL DEFAULT '', `COLUMN_KEY` varchar(3) NOT NULL DEFAULT '', `EXTRA` varchar(30) NOT NULL DEFAULT '', `PRIVILEGES` varchar(80) NOT NULL DEFAULT '', `COLUMN_COMMENT` varchar(1024) NOT NULL DEFAULT '', `IS_GENERATED` varchar(6) NOT NULL DEFAULT '', `GENERATION_EXPRESSION` longtext DEFAULT NULL )

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 COLUMNS page in the SkySQL Documentation.