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https://issues.apache.org/jira/browse/SPARK-9210?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust resolved SPARK-9210.
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Resolution: Fixed
Assignee: Yin Huai
Fix Version/s: 1.6.0
> 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
> Assignee: Yin Huai
> Priority: Trivial
> Fix For: 1.6.0
>
>
> 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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