[jira] [Commented] (SPARK-36635) spark-sql do NOT support that select name expression as string type now

["Hyukjin Kwon (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-36635?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17408530#comment-17408530 ] 

Hyukjin Kwon commented on SPARK-36635:
--------------------------------------

did it work before?

> spark-sql do NOT support  that select name expression as string type now
> ------------------------------------------------------------------------
>
>                 Key: SPARK-36635
>                 URL: https://issues.apache.org/jira/browse/SPARK-36635
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 3.1.0, 3.1.2
>            Reporter: weixiuli
>            Priority: Major
>
> The follow statement would throw an exception.
> {code:java}
>  sql("SELECT age as 'a', name as 'n' FROM VALUES (2, 'Alice'), (5, 'Bob') people(age, name)")
> {code}
> {code:java}
> // Exception information
> Error in query:
> mismatched input ''a'' expecting {<EOF>, ';'}(line 1, pos 14)
> == SQL ==
> SELECT age as 'a', name as 'n' FROM VALUES (2, 'Alice'), (5, 'Bob') people(age, name)
> --------------^^^
> {code}



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