[jira] [Commented] (SPARK-39497) Improve the analysis exception of missing map key column

["Apache Spark (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-39497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17555334#comment-17555334 ] 

Apache Spark commented on SPARK-39497:
--------------------------------------

User 'gengliangwang' has created a pull request for this issue:
https://github.com/apache/spark/pull/36896

> Improve the analysis exception of missing map key column
> --------------------------------------------------------
>
>                 Key: SPARK-39497
>                 URL: https://issues.apache.org/jira/browse/SPARK-39497
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.4.0
>            Reporter: Gengliang Wang
>            Assignee: Gengliang Wang
>            Priority: Minor
>
> Sometimes users forgot to add single quotes on the map key string literal, for example `map_col[a]`. In such a case, the Analyzer will throw an exception:
> {code:java}
> [MISSING_COLUMN] Column 'struct.a' does not exist. Did you mean one of the following? ...{code}
> We can improve this message by saying that the user should append single quotes if the map key is a string literal.



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