CREATE TEMPORARY TABLE table_54044 ENGINE = INNODB
AS SELECT IF(NULL  IS NOT NULL, NULL, NULL);
SHOW CREATE TABLE table_54044;
Table	Create Table
table_54044	CREATE TEMPORARY TABLE `table_54044` (
  `IF(NULL  IS NOT NULL, NULL, NULL)` binary(0) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE table_54044;
CREATE TABLE tmp ENGINE = INNODB
AS SELECT COALESCE(NULL, NULL, NULL), GREATEST(NULL, NULL), NULL;
SHOW CREATE TABLE tmp;
Table	Create Table
tmp	CREATE TABLE `tmp` (
  `COALESCE(NULL, NULL, NULL)` binary(0) DEFAULT NULL,
  `GREATEST(NULL, NULL)` binary(0) DEFAULT NULL,
  `NULL` binary(0) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE tmp;