[jira] [Assigned] (SPARK-25216) Provide better error message when a column contains dot and needs backticks quote

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

     [ https://issues.apache.org/jira/browse/SPARK-25216?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-25216:
------------------------------------

    Assignee:     (was: Apache Spark)

> Provide better error message when a column contains dot and needs backticks quote
> ---------------------------------------------------------------------------------
>
>                 Key: SPARK-25216
>                 URL: https://issues.apache.org/jira/browse/SPARK-25216
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.4.0
>            Reporter: Li Jin
>            Priority: Major
>
> The current error message is  often confusing to a new Spark user that a column containing "." needs backticks quote. 
> For example, consider the following code:
> {code:java}
> spark.range(0, 1).toDF('a.b')['a.b']{code}
> the current message looks like:
> {code:java}
> Cannot resolve column name "a.b" among (a.b)
> {code}
> We could improve the error message to, e.g: 
> {code:java}
> Cannot resolve column name "a.b" among (a.b). Try adding backticks to the column name, i.e., `a.b`;
> {code}
>  



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