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https://issues.apache.org/jira/browse/SPARK-48006?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot reassigned SPARK-48006:
--------------------------------------

    Assignee:     (was: Apache Spark)

> add SortOrder for window function which has no orderSpec
> --------------------------------------------------------
>
>                 Key: SPARK-48006
>                 URL: https://issues.apache.org/jira/browse/SPARK-48006
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 4.0.0
>            Reporter: guihuawen
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 4.0.0
>
>
> I am doing Hive SQL to switch to Spark SQL.
>  
> In Hive SQL
>  
> hive> explain select *,row_number() over (partition by day) rn from 
> testdb.zeropart_db;
> OK
> Explain
>  
> In Spark SQL
> spark-sql> explain select *,row_number() over (partition by age ) rn  from 
> testdb.zeropart_db;
> plan
> == Physical Plan ==
> org.apache.spark.sql.AnalysisException: Window function row_number() requires 
> window to be ordered, please add ORDER BY clause. For example SELECT 
> row_number()(value_expr) OVER (PARTITION BY window_partition ORDER BY 
> window_ordering) from table
> Time taken: 0.172 seconds, Fetched 1 row(s)
>  
> For better compatibility with migration. For better compatibility with 
> migration, new parameters are added to ensure compatibility with the same 
> behavior as Hive SQL
>  



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