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https://issues.apache.org/jira/browse/SPARK-25216?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Li Jin updated SPARK-25216:
---------------------------
Description:
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}
was:
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}
> 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, 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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