[jira] [Assigned] (SPARK-39783) Column backticks are misplaced in the AnalysisException [UNRESOLVED_COLUMN] error message when using field with "."

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

     [ https://issues.apache.org/jira/browse/SPARK-39783?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-39783:
------------------------------------

    Assignee: Apache Spark

> Column backticks are misplaced in the AnalysisException [UNRESOLVED_COLUMN] error message when using field with "."
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-39783
>                 URL: https://issues.apache.org/jira/browse/SPARK-39783
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 3.4.0
>            Reporter: Enrico Minack
>            Assignee: Apache Spark
>            Priority: Major
>
> AnalysisException [UNRESOLVED_COLUMN] shows the wrong suggestion when a field with the "." separator is referenced without backticks.
>  
> The following code references a nested value {{{}`the`.`id`{}}}, that does not exist. The proposed / existing column names are not correctly wrapped in backticks:
> {code:scala}
> Seq((0)).toDF("the.id")
>   .select("the.id").show()
> org.apache.spark.sql.AnalysisException: [UNRESOLVED_COLUMN] A column or function parameter with name `the`.`id` cannot be resolved. Did you mean one of the following? [`the`.`id`];
> {code}
> Instead of {{{}[`the`.`id`]{}}}, you would expect {{{}[`the.id`]{}}}.
> Here an example where the nested column exists:
> {code:scala}
> spark.range(1).select(struct("id").as("the"))
>   .select("the.id").show()
> +---+
> | id|
> +---+
> |  0|
> +---+
> {code}



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