TherChenYang opened a new pull request, #29700:
URL: https://github.com/apache/shardingsphere/pull/29700
Fixes #29168, #29167, #29166, #29165.
Changes proposed in this pull request:
- support parsing SQL Server distinct from syntax [offical
link](https://learn.microsoft.com/zh-cn/sql/t-sql/queries/is-distinct-from-transact-sql?view=sql-server-ver16)
<img width="742" alt="image"
src="https://github.com/apache/shardingsphere/assets/124348939/554259ac-d503-44d2-8806-89cd1b3a7d33";>
- provide test case for the issues above
```sql
SELECT * FROM #SampleTempTable WHERE id IS NOT DISTINCT FROM NULL
```
```sql
SELECT * FROM #SampleTempTable WHERE id IS DISTINCT FROM 17
```
```sql
INSERT INTO #SampleTempTable VALUES (10, null)
```
```sql
INSERT INTO #SampleTempTable VALUES (null, null)
```
---
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- [x] I have added corresponding unit tests for my changes.
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