# This is the test for bug #54044. Special handle MYSQL_TYPE_NULL type
# during create table, so it will not trigger assertion failure.

--source include/have_innodb.inc

# This 'create table' operation no longer uses the NULL datatype.

CREATE TEMPORARY TABLE table_54044 ENGINE = INNODB
 AS SELECT IF(NULL  IS NOT NULL, NULL, NULL); 
SHOW CREATE TABLE table_54044;
DROP TABLE table_54044;

# These 'create table' operations should fail because of
# using NULL datatype

--error ER_CANT_CREATE_TABLE
CREATE TABLE tmp ENGINE = INNODB AS SELECT COALESCE(NULL, NULL, NULL);
--error ER_CANT_CREATE_TABLE
CREATE TABLE tmp ENGINE = INNODB AS SELECT GREATEST(NULL, NULL);