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https://issues.apache.org/jira/browse/SPARK-36800?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17420206#comment-17420206
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Hyukjin Kwon commented on SPARK-36800:
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The image is broke [~melin]. mind double checking it please

> The  create table as select statement verifies the valid column name
> --------------------------------------------------------------------
>
>                 Key: SPARK-36800
>                 URL: https://issues.apache.org/jira/browse/SPARK-36800
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.1.0
>            Reporter: melin
>            Priority: Major
>
> If the column name output by select is not a valid column name, the prompt is 
> not very clear, it is recommended to add a column name check
> {code:java}
> create table tdl_demo_dd as select 1+1{code}
> !image-2021-09-19-17-25-02-239.png!



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