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https://issues.apache.org/jira/browse/SPARK-36635?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17409222#comment-17409222
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weixiuli commented on SPARK-36635:
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It didn't work before either.
> 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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