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Posted to issues@spark.apache.org by "Yuming Wang (Jira)" <ji...@apache.org> on 2021/02/06 03:02:00 UTC

[jira] [Updated] (SPARK-33410) Resolve SQL query reference a column by an alias

     [ https://issues.apache.org/jira/browse/SPARK-33410?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yuming Wang updated SPARK-33410:
--------------------------------
    Description: 
This pr add support resolve SQL query reference a column by an alias, for example:
 ```sql
 select id + 1 as new_id, new_id + 1 as new_new_id from range(5);
 ```

Teradata and snowflake support this feature: [https://docs.teradata.com/reader/e79ET77~NzPDz~Ykinj44w/MKSYuTyx2UJWXzdHJf3~sQ]

[https://www.mssqltips.com/sqlservertutorial/9292/snowflake-regular-expression-alias-and-ilike]

  was:
This pr add support resolve SQL query reference a column by an alias, for example:
```sql
select id + 1 as new_id, new_id + 1 as new_new_id from range(5);
```

Teradata support this feature: https://docs.teradata.com/reader/e79ET77~NzPDz~Ykinj44w/MKSYuTyx2UJWXzdHJf3~sQ


> Resolve SQL query reference a column by an alias
> ------------------------------------------------
>
>                 Key: SPARK-33410
>                 URL: https://issues.apache.org/jira/browse/SPARK-33410
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 3.1.0
>            Reporter: Yuming Wang
>            Priority: Major
>
> This pr add support resolve SQL query reference a column by an alias, for example:
>  ```sql
>  select id + 1 as new_id, new_id + 1 as new_new_id from range(5);
>  ```
> Teradata and snowflake support this feature: [https://docs.teradata.com/reader/e79ET77~NzPDz~Ykinj44w/MKSYuTyx2UJWXzdHJf3~sQ]
> [https://www.mssqltips.com/sqlservertutorial/9292/snowflake-regular-expression-alias-and-ilike]



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