[jira] [Commented] (SPARK-9210) checkValidAggregateExpression() throws exceptions with bad error messages

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

    [ https://issues.apache.org/jira/browse/SPARK-9210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14694656#comment-14694656 ] 

Apache Spark commented on SPARK-9210:
-------------------------------------

User 'yhuai' has created a pull request for this issue:
https://github.com/apache/spark/pull/8113

> checkValidAggregateExpression() throws exceptions with bad error messages
> -------------------------------------------------------------------------
>
>                 Key: SPARK-9210
>                 URL: https://issues.apache.org/jira/browse/SPARK-9210
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 1.4.1
>         Environment: N/A
>            Reporter: Simeon Simeonov
>            Priority: Trivial
>
> When a result column in {{SELECT ... GROUP BY}} is neither one of the {{GROUP BY}} expressions nor uses an aggregation function, {{org.apache.spark.sql.catalyst.analysis.CheckAnalysis}} throws {{org.apache.spark.sql.AnalysisException}} with the message "expression '_column expression_' is neither present in the group by, nor is it an aggregate function. Add to group by or wrap in first() if you don't care which value you get."
> The remedy suggestion in the exception message is incorrect: the function name is {{first_value}}, not {{first}}.



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