DROP TABLE IF EXISTS t;
SET SESSION DEFAULT_STORAGE_ENGINE="TokuDB";
SET SESSION TOKUDB_DISABLE_SLOW_ALTER=1;
CREATE TABLE t (a TINYTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a TINYBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TINYTEXT NULL;
DROP TABLE t;
CREATE TABLE t (a TINYTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a TINYBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TINYTEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a TINYTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a TINYBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TINYTEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a TINYTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a TINYBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TINYTEXT NOT NULL;
DROP TABLE t;
CREATE TABLE t (a TINYTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a BLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TEXT NULL;
DROP TABLE t;
CREATE TABLE t (a TINYTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a BLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a TINYTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a BLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a TINYTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a BLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TEXT NOT NULL;
DROP TABLE t;
CREATE TABLE t (a TINYTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a MEDIUMBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a MEDIUMTEXT NULL;
DROP TABLE t;
CREATE TABLE t (a TINYTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a MEDIUMBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a MEDIUMTEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a TINYTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a MEDIUMBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a MEDIUMTEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a TINYTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a MEDIUMBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a MEDIUMTEXT NOT NULL;
DROP TABLE t;
CREATE TABLE t (a TINYTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a LONGBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a LONGTEXT NULL;
DROP TABLE t;
CREATE TABLE t (a TINYTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a LONGBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a LONGTEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a TINYTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a LONGBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a LONGTEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a TINYTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a LONGBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a LONGTEXT NOT NULL;
DROP TABLE t;
CREATE TABLE t (a TEXT NULL);
ALTER TABLE t CHANGE COLUMN a a TINYBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TINYTEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a TEXT NULL);
ALTER TABLE t CHANGE COLUMN a a TINYBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TINYTEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a TEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a TINYBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TINYTEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a TEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a TINYBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TINYTEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a TEXT NULL);
ALTER TABLE t CHANGE COLUMN a a BLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TEXT NULL;
DROP TABLE t;
CREATE TABLE t (a TEXT NULL);
ALTER TABLE t CHANGE COLUMN a a BLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a TEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a BLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a TEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a BLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TEXT NOT NULL;
DROP TABLE t;
CREATE TABLE t (a TEXT NULL);
ALTER TABLE t CHANGE COLUMN a a MEDIUMBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a MEDIUMTEXT NULL;
DROP TABLE t;
CREATE TABLE t (a TEXT NULL);
ALTER TABLE t CHANGE COLUMN a a MEDIUMBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a MEDIUMTEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a TEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a MEDIUMBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a MEDIUMTEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a TEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a MEDIUMBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a MEDIUMTEXT NOT NULL;
DROP TABLE t;
CREATE TABLE t (a TEXT NULL);
ALTER TABLE t CHANGE COLUMN a a LONGBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a LONGTEXT NULL;
DROP TABLE t;
CREATE TABLE t (a TEXT NULL);
ALTER TABLE t CHANGE COLUMN a a LONGBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a LONGTEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a TEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a LONGBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a LONGTEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a TEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a LONGBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a LONGTEXT NOT NULL;
DROP TABLE t;
CREATE TABLE t (a MEDIUMTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a TINYBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TINYTEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a MEDIUMTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a TINYBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TINYTEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a MEDIUMTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a TINYBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TINYTEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a MEDIUMTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a TINYBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TINYTEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a MEDIUMTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a BLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a MEDIUMTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a BLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a MEDIUMTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a BLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a MEDIUMTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a BLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a MEDIUMTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a MEDIUMBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a MEDIUMTEXT NULL;
DROP TABLE t;
CREATE TABLE t (a MEDIUMTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a MEDIUMBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a MEDIUMTEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a MEDIUMTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a MEDIUMBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a MEDIUMTEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a MEDIUMTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a MEDIUMBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a MEDIUMTEXT NOT NULL;
DROP TABLE t;
CREATE TABLE t (a MEDIUMTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a LONGBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a LONGTEXT NULL;
DROP TABLE t;
CREATE TABLE t (a MEDIUMTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a LONGBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a LONGTEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a MEDIUMTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a LONGBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a LONGTEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a MEDIUMTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a LONGBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a LONGTEXT NOT NULL;
DROP TABLE t;
CREATE TABLE t (a LONGTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a TINYBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TINYTEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a LONGTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a TINYBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TINYTEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a LONGTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a TINYBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TINYTEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a LONGTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a TINYBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TINYTEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a LONGTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a BLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a LONGTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a BLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a LONGTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a BLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a LONGTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a BLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a TEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a LONGTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a MEDIUMBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a MEDIUMTEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a LONGTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a MEDIUMBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a MEDIUMTEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a LONGTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a MEDIUMBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a MEDIUMTEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a LONGTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a MEDIUMBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a MEDIUMTEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a LONGTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a LONGBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a LONGTEXT NULL;
DROP TABLE t;
CREATE TABLE t (a LONGTEXT NULL);
ALTER TABLE t CHANGE COLUMN a a LONGBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a LONGTEXT NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a LONGTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a LONGBLOB NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a LONGTEXT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
DROP TABLE t;
CREATE TABLE t (a LONGTEXT NOT NULL);
ALTER TABLE t CHANGE COLUMN a a LONGBLOB NOT NULL;
ERROR 42000: Table 't' uses an extension that doesn't exist in this XYZ version
ALTER TABLE t CHANGE COLUMN a a LONGTEXT NOT NULL;
DROP TABLE t;