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.