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

["Li Jin (JIRA)" <ji...@apache.org>]

Li Jin created SPARK-25216:
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             Summary: 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


The current error message is  often confusing to a new Spark user that a column containing "." needs backticks quote. 

For example, 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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