COLUMNS

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 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
)

CHANGE HISTORY

Release Series	History
10.5 Enterprise	Present starting in MariaDB Enterprise Server 10.5.3-1.
10.5 Community	Present starting in MariaDB Community Server 10.5.0.
10.4 Enterprise	Present starting in MariaDB Enterprise Server 10.4.6-1.
10.4 Community	Present starting in MariaDB Community Server 10.4.0.
10.3 Enterprise	Present starting in MariaDB Enterprise Server 10.3.16-1.
10.3 Community	Present starting in MariaDB Community Server 10.3.0.
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.