pingcap / pingcap/tidb

Tidb View compatibility issues with mysql.

Open
#32,478 2 comments 0 reactions 0 assignees View on GitHub
severity/moderate sig/sql-infra type/bug
Dominant language
Go
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Description

## Bug Report

Please answer these questions before submitting your issue. Thanks!

### 1. Minimal reproduce step (Required)
```sql
--Tidb is allowing variables in view select , mysql is not:
create table t1 (a int, b int);
set @v1=10;
create view v1 (c,d) as select a,b+@v1 from t1;

--WITH CHECK OPTION should be syntactically compatible :
create view v2 as select a from t1 WITH CHECK OPTION;
```
### 2. What did you expect to see? (Required)
```sql
mysql> create view v1 (c,d) as select a,b+@v1 from t1;
ERROR 1351 (HY000): View's SELECT contains a variable or parameter

mysql> create view v2 as select a from t1 WITH CHECK OPTION;
Query OK, 0 rows affected (0.01 sec)
```
### 3. What did you see instead (Required)
```sql
mysql> create view v1 (c,d) as select a,b+@v1 from t1;
Query OK, 0 rows affected (0.00 sec)

mysql> create view v2 as select a from t1 WITH CHECK OPTION;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your TiDB version for the right syntax to use line 1 column 46 near "CHECK OPTION"
```
### 4. What is your TiDB version? (Required)

```sql
| Release Version: v5.5.0-alpha-182-gad9430039
Edition: Community
Git Commit Hash: ad9430039f54bb9af78d44831c176bc5eafcbba0
Git Branch: master
UTC Build Time: 2022-02-18 17:57:13
GoVersion: go1.17.2
Race Enabled: false
TiKV Min Version: v3.0.0-60965b006877ca7234adaced7890d7b029ed1306
Check Table Before Drop: false |
```

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