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Posted to commits@doris.apache.org by GitBox <gi...@apache.org> on 2021/03/03 07:48:58 UTC
[GitHub] [incubator-doris] francisoliverlee opened a new issue #5447: [union all same field with different types make EXCEPTION] Unexpected exception: Failed analysis after expr substitution.
francisoliverlee opened a new issue #5447:
URL: https://github.com/apache/incubator-doris/issues/5447
**Describe the bug**
```
ERROR 5012 (HY000): errCode = 2, detailMessage = Unexpected exception: Failed analysis after expr substitution.
```
**To Reproduce**
- prepare doris tables
```sql
create database test;
use test;
CREATE TABLE `dp_class_student_test` (
`teacher_region` int(11) NULL COMMENT ""
) ENGINE=OLAP
COMMENT ""
DISTRIBUTED BY HASH(`teacher_region`) BUCKETS 1
PROPERTIES (
"replication_num" = "1",
"in_memory" = "false",
"storage_format" = "DEFAULT"
);
insert into test.dp_class_student_test(teacher_region) values(1);
insert into test.dp_class_student_test(teacher_region) values(2);
insert into test.dp_class_student_test(teacher_region) values(3);
```
- exec sql to reproduce the EXCEPTION
```sql
select
distinct teacher_region
from
(
select
teacher_region
from
test.dp_class_student_test
union all
select
'全国' as teacher_region
from
test.dp_class_student_test
) as aaa
where teacher_region in ('1', '全国')
```
- find out where problem is
- sql can run right
```sql
select
distinct teacher_region
from
(
select
teacher_region
from
test.dp_class_student_test
union all
select
'全国' as teacher_region
from
test.dp_class_student_test
) as aaa
where teacher_region in ('1');
```
- sql cannot run
```sql
select
distinct teacher_region
from
(
select
teacher_region
from
test.dp_class_student_test
union all
select
'全国' as teacher_region
from
test.dp_class_student_test
) as aaa
where teacher_region in ('全国');
```
**Expected behavior**
take teacher_region as string to do filter in the table, run and return right result
**Doris Be and Fe version
- version 0.12.21
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[GitHub] [incubator-doris] HappenLee edited a comment on issue #5447: [Bug][union all same field with different types make EXCEPTION] Unexpected exception: Failed analysis after expr substitution.
Posted by GitBox <gi...@apache.org>.
HappenLee edited a comment on issue #5447:
URL: https://github.com/apache/incubator-doris/issues/5447#issuecomment-794960744
Hi, @francisoliverlee It's look like the problem of type cast. Before we fix the problem, you can use the sql like
```
select
distinct teacher_region
from
(
select
cast (teacher_region as varcher) as teacher_region
from
test.dp_class_student_test
union all
select
'全国' as teacher_region
from
test.dp_class_student_test
) as aaa
where teacher_region in ('1', '全国')
```
to avoid the problem appear.
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[GitHub] [incubator-doris] francisoliverlee commented on issue #5447: [Bug][union all same field with different types make EXCEPTION] Unexpected exception: Failed analysis after expr substitution.
Posted by GitBox <gi...@apache.org>.
francisoliverlee commented on issue #5447:
URL: https://github.com/apache/incubator-doris/issues/5447#issuecomment-795183350
1. tks
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[GitHub] [incubator-doris] HappenLee commented on issue #5447: [Bug][union all same field with different types make EXCEPTION] Unexpected exception: Failed analysis after expr substitution.
Posted by GitBox <gi...@apache.org>.
HappenLee commented on issue #5447:
URL: https://github.com/apache/incubator-doris/issues/5447#issuecomment-794960744
It's look like the problem of type cast.
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