oracle bug 12415167

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drop table t1;
create table t1 (c1 char(2) primary key, c2 char(1) not null);
insert into t1 values (‘A ‘,‘A‘);
 
select t1.c1 from t1
 where t1.c1 in (select c2 from t1 union all select ‘0‘||c2 c2 from t1);

select /*+ full(t1) */ t1.c1 from t1
 where t1.c1 in (select c2 from t1 union all select ‘0‘||c2 c2 from t1);
 
1st query returns no row, 2nd query return ‘A‘

oracle bug 12415167

标签：style   color   io   ar   on   c   oracle   rgb   table   

原文地址：http://blog.csdn.net/mvccc/article/details/39055095