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drop table if exists t1,t2;
create table t1 (a int, b varchar(200), c text not null) checksum=1;
create table t2 (a int, b varchar(200), c text not null) checksum=0;
insert t1 values (1, "aaa", "bbb"), (NULL, "", "ccccc"), (0, NULL, "");
insert t2 select * from t1;
checksum table t1, t2;
Table Checksum
test.t1 2948697075
test.t2 2948697075
checksum table t1, t2 quick;
Table Checksum
test.t1 NULL
test.t2 NULL
checksum table t1, t2 extended;
Table Checksum
test.t1 2948697075
test.t2 2948697075
drop table t1,t2;
SHOW PROCESSLIST;
Id User Host db Command Time State Info
<Id> root <Host> test Query <Time> init SHOW PROCESSLIST
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