--disable_warnings
let $ENGINE=`select variable_value from performance_schema.global_variables where variable_name='DEFAULT_STORAGE_ENGINE'`;
--enable_warnings

--disable_warnings
DROP TABLE IF EXISTS t2;
--enable_warnings
CREATE TABLE t2(c1 CHAR(200) NOT NULL);
SHOW TABLES; 
--replace_result $ENGINE ENGINE " PAGE_CHECKSUM=0" ""
 SHOW CREATE TABLE t2; 
ALTER TABLE t2 MODIFY c1 CHAR(200) NULL;
SHOW TABLES; 
--replace_result $ENGINE ENGINE " PAGE_CHECKSUM=0" ""
 SHOW CREATE TABLE t2; DROP TABLE t2; SHOW TABLES;
CREATE TABLE t2(c1 VARCHAR(200) NOT NULL);
SHOW TABLES; 
--replace_result $ENGINE ENGINE " PAGE_CHECKSUM=0" ""
 SHOW CREATE TABLE t2; 
ALTER TABLE t2 MODIFY c1 VARCHAR(200) NULL;
SHOW TABLES; 
--replace_result $ENGINE ENGINE " PAGE_CHECKSUM=0" ""
 SHOW CREATE TABLE t2; DROP TABLE t2; SHOW TABLES;
CREATE TABLE t2(c1 BINARY(200) NOT NULL);
SHOW TABLES; 
--replace_result $ENGINE ENGINE " PAGE_CHECKSUM=0" ""
 SHOW CREATE TABLE t2; 
ALTER TABLE t2 MODIFY c1 BINARY(200) NULL;
SHOW TABLES; 
--replace_result $ENGINE ENGINE " PAGE_CHECKSUM=0" ""
 SHOW CREATE TABLE t2; DROP TABLE t2; SHOW TABLES;
CREATE TABLE t2(c1 VARBINARY(200) NOT NULL);
SHOW TABLES; 
--replace_result $ENGINE ENGINE " PAGE_CHECKSUM=0" ""
 SHOW CREATE TABLE t2; 
ALTER TABLE t2 MODIFY c1 VARBINARY(200) NULL;
SHOW TABLES; 
--replace_result $ENGINE ENGINE " PAGE_CHECKSUM=0" ""
 SHOW CREATE TABLE t2; DROP TABLE t2; SHOW TABLES;
CREATE TABLE t2(c1 CHAR(200) NOT NULL);
SHOW TABLES; 
--replace_result $ENGINE ENGINE " PAGE_CHECKSUM=0" ""
 SHOW CREATE TABLE t2; 
ALTER TABLE t2 CHANGE c1 c1 CHAR(200) NULL;
SHOW TABLES; 
--replace_result $ENGINE ENGINE " PAGE_CHECKSUM=0" ""
 SHOW CREATE TABLE t2; DROP TABLE t2; SHOW TABLES;
CREATE TABLE t2(c1 VARCHAR(200) NOT NULL);
SHOW TABLES; 
--replace_result $ENGINE ENGINE " PAGE_CHECKSUM=0" ""
 SHOW CREATE TABLE t2; 
ALTER TABLE t2 CHANGE c1 c1 VARCHAR(200) NULL;
SHOW TABLES; 
--replace_result $ENGINE ENGINE " PAGE_CHECKSUM=0" ""
 SHOW CREATE TABLE t2; DROP TABLE t2; SHOW TABLES;
CREATE TABLE t2(c1 BINARY(200) NOT NULL);
SHOW TABLES; 
--replace_result $ENGINE ENGINE " PAGE_CHECKSUM=0" ""
 SHOW CREATE TABLE t2; 
ALTER TABLE t2 CHANGE c1 c1 BINARY(200) NULL;
SHOW TABLES; 
--replace_result $ENGINE ENGINE " PAGE_CHECKSUM=0" ""
 SHOW CREATE TABLE t2; DROP TABLE t2; SHOW TABLES;
CREATE TABLE t2(c1 VARBINARY(200) NOT NULL);
SHOW TABLES; 
--replace_result $ENGINE ENGINE " PAGE_CHECKSUM=0" ""
 SHOW CREATE TABLE t2; 
ALTER TABLE t2 CHANGE c1 c1 VARBINARY(200) NULL;
SHOW TABLES; 
--replace_result $ENGINE ENGINE " PAGE_CHECKSUM=0" ""
 SHOW CREATE TABLE t2; DROP TABLE t2; SHOW TABLES;