drop table if exists t1;
create table t1 (a int null, v varchar(100)) engine=myisam checksum=0;
insert into t1 values(null, null), (1, "hello");
checksum table t1;
Table	Checksum
test.t1	452555338
checksum table t1 quick;
Table	Checksum
test.t1	NULL
checksum table t1 extended;
Table	Checksum
test.t1	452555338
drop table if exists t1;
create table t1 (a int null, v varchar(100)) engine=myisam checksum=1;
insert into t1 values(null, null), (1, "hello");
checksum table t1;
Table	Checksum
test.t1	452555338
checksum table t1 quick;
Table	Checksum
test.t1	NULL
checksum table t1 extended;
Table	Checksum
test.t1	452555338
drop table if exists t1;
create table t1 (a int null, v varchar(100)) engine=innodb checksum=0;
insert into t1 values(null, null), (1, "hello");
checksum table t1;
Table	Checksum
test.t1	452555338
checksum table t1 quick;
Table	Checksum
test.t1	NULL
checksum table t1 extended;
Table	Checksum
test.t1	452555338
drop table t1;
create table t1 (a int null, v varchar(100)) engine=maria checksum=0;
insert into t1 values(null, null), (1, "hello");
checksum table t1;
Table	Checksum
test.t1	452555338
checksum table t1 quick;
Table	Checksum
test.t1	NULL
checksum table t1 extended;
Table	Checksum
test.t1	452555338
drop table t1;
create table t1 (a int null, v varchar(100)) engine=maria checksum=1;
insert into t1 values(null, null), (1, "hello");
checksum table t1;
Table	Checksum
test.t1	452555338
checksum table t1 quick;
Table	Checksum
test.t1	NULL
checksum table t1 extended;
Table	Checksum
test.t1	452555338
drop table t1;
create table t1 (a int null, v varchar(100)) engine=myisam checksum=1 row_format=fixed;
insert into t1 values(null, null), (1, "hello");
checksum table t1;
Table	Checksum
test.t1	4108368782
checksum table t1 quick;
Table	Checksum
test.t1	NULL
checksum table t1 extended;
Table	Checksum
test.t1	4108368782
drop table if exists t1;
create table t1 (a int null, v varchar(100)) engine=innodb checksum=0 row_format=fixed;
Warnings:
Warning	140	InnoDB: assuming ROW_FORMAT=COMPACT.
insert into t1 values(null, null), (1, "hello");
checksum table t1;
Table	Checksum
test.t1	4108368782
checksum table t1 quick;
Table	Checksum
test.t1	NULL
checksum table t1 extended;
Table	Checksum
test.t1	4108368782
drop table t1;