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https://issues.apache.org/jira/browse/SPARK-37382?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17447280#comment-17447280
]
caican commented on SPARK-37382:
--------------------------------
[~victor-wong] Does the images display nomally now?
> `with as` clause got inconsistent results
> -----------------------------------------
>
> Key: SPARK-37382
> URL: https://issues.apache.org/jira/browse/SPARK-37382
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.1.2
> Reporter: caican
> Priority: Major
> Attachments: spark2.3.png, spark3.1.png
>
>
> In Spark3.1, the `with as` clause in the same SQL is executed multiple times,
> got different results
> `
> with tab as (
> select 'Withas' as name, rand() as rand_number
> )
> select name, rand_number
> from tab
> union all
> select name, rand_number
> from tab
> `
> !spark3.1.png!
> But In spark2.3, it got consistent results
> `
> with tab as (
> select 'Withas' as name, rand() as rand_number
> )
> select name, rand_number
> from tab
> union all
> select name, rand_number
> from tab
> `
> !spark2.3.png!
> Why does Spark3.1.2 return different results?
> Has anyone encountered this problem?
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