TherChenYang opened a new pull request, #29655:
URL: https://github.com/apache/shardingsphere/pull/29655
Fixes #29158.
Changes proposed in this pull request:
- Add support for parse update statistics [official website
link](https://learn.microsoft.com/zh-cn/sql/t-sql/statements/update-statistics-transact-sql?view=sql-server-ver16)
- Add update statistics statement
- Add update statistics assert
---
Support for the following update statistics sql
**update_statistics_with_no_index**
```sql
UPDATE STATISTICS Sales.SalesOrderDetail;
```
**update_statistics_with_full_scan**
```sql
UPDATE STATISTICS Customer (CustomerStats1) WITH FULLSCAN;
```
**update_statistics_with_auto_drop**
```sql
UPDATE STATISTICS Customer (CustomerStats1) WITH AUTO_DROP = ON;
```
**update_statistics_with_sample**
```sql
UPDATE STATISTICS Production.Product(Products) WITH SAMPLE 50 PERCENT;
```
**update_statistics_with_full_scan_no_recompute**
```sql
UPDATE STATISTICS Production.Product(Products) WITH FULLSCAN, NORECOMPUTE;
```
**update_statistics_with_resample_on_partitions**
```sql
UPDATE STATISTICS dbo.PartitionIncrStatDemo(IX_PartitionIncrStatDemo_ID)
WITH RESAMPLE ON PARTITIONS(3)
```
---
Support for the following sql in #29158
```sql
SELECT -- Find an event you want.
p.name AS [Package-Name],
o.object_type,
o.name AS [Object-Name],
o.description AS [Object-Descr],
p.guid AS [Package-Guid]
FROM sys.dm_xe_packages AS p
INNER JOIN sys.dm_xe_objects AS o
ON p.guid = o.package_guid
WHERE o.object_type = 'event' --'action' --'target'
AND p.name LIKE '%'
AND o.name LIKE '%sql%'
ORDER BY p.name,
o.object_type,
o.name
```
```sql
SELECT ProductId, Name, value
FROM Product
CROSS APPLY STRING_SPLIT(Tags, ',')
```
```sql
SELECT value as tag, COUNT(*) AS [number_of_articles]
FROM Product
CROSS APPLY STRING_SPLIT(Tags, ',')
GROUP BY value
HAVING COUNT(*) > 2
ORDER BY COUNT(*) DESC
```
---
Before committing this PR, I'm sure that I have checked the following
options:
- [x] My code follows the [code of
conduct](https://shardingsphere.apache.org/community/en/involved/conduct/code/)
of this project.
- [x] I have self-reviewed the commit code.
- [ ] I have (or in comment I request) added corresponding labels for the
pull request.
- [x] I have passed maven check locally : `./mvnw clean install -B -T1C
-Dmaven.javadoc.skip -Dmaven.jacoco.skip -e`.
- [ ] I have made corresponding changes to the documentation.
- [x] I have added corresponding unit tests for my changes.
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