Pierre Borckmans created SPARK-11637:
----------------------------------------
Summary: Alias do not work with udf with * parameter
Key: SPARK-11637
URL: https://issues.apache.org/jira/browse/SPARK-11637
Project: Spark
Issue Type: Bug
Affects Versions: 1.5.1, 1.5.0, 1.5.2
Reporter: Pierre Borckmans
In Spark < 1.5.0, this used to work :
```
scala> sqlContext.sql("select hash(*) as x from T")
res2: org.apache.spark.sql.DataFrame = [x: int]
```
>From Spark 1.5.0+, it fails:
```
scala> sqlContext.sql("select hash(*) as x from T")
org.apache.spark.sql.AnalysisException: unresolved operator 'Project ['hash(*)
AS x#1];
at
org.apache.spark.sql.catalyst.analysis.CheckAnalysis$class.failAnalysis(CheckAnalysis.scala:37)
at
org.apache.spark.sql.catalyst.analysis.Analyzer.failAnalysis(Analyzer.scala:44)
at
org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1.apply(CheckAnalysis.scala:174)
at
org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1.apply(CheckAnalysis.scala:49)
at
org.apache.spark.sql.catalyst.trees.TreeNode.foreachUp(TreeNode.scala:103)
...
```
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