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merged

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serg@serg.mylan
2004-08-22 12:47:11 +02:00
parent 566344b42e d5bf903e4d
commit d0afecff15
2 changed files with 85 additions and 65 deletions
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21
mysql-test/t/null.test
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@ -98,3 +98,24 @@ explain select * from t1 where a between 2 and 3;
explain select * from t1 where a between 2 and 3 or b is null;
drop table t1;
select cast(NULL as signed);
#
# Test case for bug #4256
#
create table t1(i int, key(i));
insert into t1 values(1);
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
explain select * from t1 where i=2 or i is null;
alter table t1 change i i int not null;
explain select * from t1 where i=2 or i is null;
drop table t1;