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Posted to commits@doris.apache.org by GitBox <gi...@apache.org> on 2022/05/23 07:36:07 UTC
[GitHub] [incubator-doris] luozenglin opened a new issue, #9738: [Bug] InPredicate child expressions type conversion related exceptions
luozenglin opened a new issue, #9738:
URL: https://github.com/apache/incubator-doris/issues/9738
### Search before asking
- [X] I had searched in the [issues](https://github.com/apache/incubator-doris/issues?q=is%3Aissue) and found no similar issues.
### Version
1.0
### What's Wrong?
1. An exception occurs when the binary predicate and the in predicate of the same column are included in the query condition, and the literal in the in predicate is type-converted.
```
mysql> select * from cost2 where id = 2 or id in ("1");
ERROR 1105 (HY000): errCode = 2, detailMessage = Unexpected exception: org.apache.doris.analysis.CastExpr cannot be cast to org.apache.doris.analysis.LiteralExpr
```
2. Cannot hit tablet using string literal in in predicate.
```
mysql> explain select * from cost2 where id in ("1");
+-----------------------------------------------------------------------------------------------+
| Explain String |
+-----------------------------------------------------------------------------------------------+
| PLAN FRAGMENT 0 |
| OUTPUT EXPRS:`default_cluster:testdb`.`cost2`.`id` | `default_cluster:testdb`.`cost2`.`cost` |
| PARTITION: UNPARTITIONED |
| |
| RESULT SINK |
| |
| 1:EXCHANGE |
| |
| PLAN FRAGMENT 1 |
| OUTPUT EXPRS: |
| PARTITION: HASH_PARTITIONED: `default_cluster:testdb`.`cost2`.`id` |
| |
| STREAM DATA SINK |
| EXCHANGE ID: 01 |
| UNPARTITIONED |
| |
| 0:OlapScanNode |
| TABLE: cost2 |
| PREAGGREGATION: OFF. Reason: No AggregateInfo |
| PREDICATES: `id` IN ('1') |
| partitions=1/1 |
| rollup: cost2 |
| tabletRatio=8/8 |
| tabletList=17010,17012,17014,17016,17018,17020,17022,17024 |
| cardinality=1 |
| avgRowSize=1570.0 |
| numNodes=1 |
+-----------------------------------------------------------------------------------------------+
27 rows in set (0.05 sec)
mysql> explain select * from cost2 where id in (1);
+-----------------------------------------------------------------------------------------------+
| Explain String |
+-----------------------------------------------------------------------------------------------+
| PLAN FRAGMENT 0 |
| OUTPUT EXPRS:`default_cluster:testdb`.`cost2`.`id` | `default_cluster:testdb`.`cost2`.`cost` |
| PARTITION: HASH_PARTITIONED: `default_cluster:testdb`.`cost2`.`id` |
| |
| RESULT SINK |
| |
| 0:OlapScanNode |
| TABLE: cost2 |
| PREAGGREGATION: OFF. Reason: No AggregateInfo |
| PREDICATES: `id` IN (1) |
| partitions=1/1 |
| rollup: cost2 |
| tabletRatio=1/8 |
| tabletList=17024 |
| cardinality=1 |
| avgRowSize=1570.0 |
| numNodes=1 |
+-----------------------------------------------------------------------------------------------+
17 rows in set (0.05 sec)
```
### What You Expected?
1.
```
mysql> select * from cost2 where id = 2 or id in ("1");
+------+------+
| id | cost |
+------+------+
| 1 | 100 |
+------+------+
1 row in set (0.07 sec)
```
2.
```
mysql> explain select * from cost2 where id in ("1");
+-----------------------------------------------------------------------------------------------+
| Explain String |
+-----------------------------------------------------------------------------------------------+
| PLAN FRAGMENT 0 |
| OUTPUT EXPRS:`default_cluster:testdb`.`cost2`.`id` | `default_cluster:testdb`.`cost2`.`cost` |
| PARTITION: HASH_PARTITIONED: `default_cluster:testdb`.`cost2`.`id` |
| |
| RESULT SINK |
| |
| 0:OlapScanNode |
| TABLE: cost2 |
| PREAGGREGATION: OFF. Reason: No AggregateInfo |
| PREDICATES: `id` IN (1) |
| partitions=1/1 |
| rollup: cost2 |
| tabletRatio=1/8 |
| tabletList=17024 |
| cardinality=1 |
| avgRowSize=1570.0 |
| numNodes=1 |
+-----------------------------------------------------------------------------------------------+
17 rows in set (0.04 sec)
```
### How to Reproduce?
1. create table
```
CREATE TABLE `cost2` (
`id` bigint(20) NULL COMMENT "",
`cost` bigint(20) SUM NULL COMMENT ""
) ENGINE=OLAP
AGGREGATE KEY(`id`)
COMMENT "OLAP"
DISTRIBUTED BY HASH(`id`) BUCKETS 8
PROPERTIES (
"replication_allocation" = "tag.location.default: 1",
"in_memory" = "false",
"storage_format" = "V2"
)
```
2. insert date
```
insert into cost2 values(1, 100);
```
3. query
```
select * from cost2 where id = 2 or id in ("1");
explain select * from cost2 where id in ("1");
```
### Anything Else?
In the first sql, both column `id` and literal `2` in expression `id = 2` will be converted to column type `bigint`, and both column `id` and literal `"2"` in expression `id in ("1")` will be converted to `varchar`. When the `ColumnRange` is generated, the `id` types in the two expressions are inconsistent, causing an exception.
### Are you willing to submit PR?
- [X] Yes I am willing to submit a PR!
### Code of Conduct
- [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)
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[GitHub] [incubator-doris] morningman closed issue #9738: [Bug] InPredicate child expressions type conversion related exceptions
Posted by GitBox <gi...@apache.org>.
morningman closed issue #9738: [Bug] InPredicate child expressions type conversion related exceptions
URL: https://github.com/apache/incubator-doris/issues/9738
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