[ 
https://issues.apache.org/jira/browse/SPARK-6929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15009340#comment-15009340
 ] 

Xiao Li commented on SPARK-6929:
--------------------------------

[~mwaciega] The default Alias name generation was changed to _c$i in the pull 
request: https://github.com/apache/spark/pull/6647. 

Your problem has been resolved. Please close it. 

> Alias for more complex expression causes attribute not been able to resolve
> ---------------------------------------------------------------------------
>
>                 Key: SPARK-6929
>                 URL: https://issues.apache.org/jira/browse/SPARK-6929
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 1.3.0
>            Reporter: MichaƂ Warecki
>            Priority: Critical
>
> I've extracted the minimal query that don't work with aliases. You can remove 
> tstudent expression ((tstudent((COUNT(g_0.test2_value) - 1)) from that query 
> and result will be the same. In exception you can see that c_0 is not 
> resolved but c_1 cause that problem.
> {code}
> SELECT g_0.test1 AS c_0, (AVG(g_0.test2) - ((tstudent((COUNT(g_0.test2_value) 
> - 1)) * stddev(g_0.test2_value)) / sqrt(convert(COUNT(g_0.test2), long)))) AS 
> c_1 FROM sometable AS g_0 GROUP BY g_0.test1 ORDER BY c_0 LIMIT 502
> {code}
> cause exception:
> {code}
> Remote org.apache.spark.sql.AnalysisException: cannot resolve 'c_0' given 
> input columns c_0, c_1; line 1 pos 246
>       at 
> org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
>       at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$apply$3$$anonfun$apply$1.applyOrElse(CheckAnalysis.scala:48)
>       at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$apply$3$$anonfun$apply$1.applyOrElse(CheckAnalysis.scala:45)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:250)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:250)
>       at 
> org.apache.spark.sql.catalyst.trees.CurrentOrigin$.withOrigin(TreeNode.scala:50)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.transformUp(TreeNode.scala:249)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$5.apply(TreeNode.scala:263)
>       at scala.collection.Iterator$$anon$11.next(Iterator.scala:328)
>       at scala.collection.Iterator$class.foreach(Iterator.scala:727)
>       at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
>       at 
> scala.collection.generic.Growable$class.$plus$plus$eq(Growable.scala:48)
>       at 
> scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:103)
>       at 
> scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:47)
>       at scala.collection.TraversableOnce$class.to(TraversableOnce.scala:273)
>       at scala.collection.AbstractIterator.to(Iterator.scala:1157)
>       at 
> scala.collection.TraversableOnce$class.toBuffer(TraversableOnce.scala:265)
>       at scala.collection.AbstractIterator.toBuffer(Iterator.scala:1157)
>       at 
> scala.collection.TraversableOnce$class.toArray(TraversableOnce.scala:252)
>       at scala.collection.AbstractIterator.toArray(Iterator.scala:1157)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.transformChildrenUp(TreeNode.scala:292)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.transformUp(TreeNode.scala:247)
>       at 
> org.apache.spark.sql.catalyst.plans.QueryPlan.org$apache$spark$sql$catalyst$plans$QueryPlan$$transformExpressionUp$1(QueryPlan.scala:103)
>       at 
> org.apache.spark.sql.catalyst.plans.QueryPlan$$anonfun$2$$anonfun$apply$2.apply(QueryPlan.scala:117)
>       at 
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
>       at 
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
>       at 
> scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
>       at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)
>       at scala.collection.TraversableLike$class.map(TraversableLike.scala:244)
>       at scala.collection.AbstractTraversable.map(Traversable.scala:105)
>       at 
> org.apache.spark.sql.catalyst.plans.QueryPlan$$anonfun$2.apply(QueryPlan.scala:116)
>       at scala.collection.Iterator$$anon$11.next(Iterator.scala:328)
>       at scala.collection.Iterator$class.foreach(Iterator.scala:727)
>       at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
>       at 
> scala.collection.generic.Growable$class.$plus$plus$eq(Growable.scala:48)
>       at 
> scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:103)
>       at 
> scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:47)
>       at scala.collection.TraversableOnce$class.to(TraversableOnce.scala:273)
>       at scala.collection.AbstractIterator.to(Iterator.scala:1157)
>       at 
> scala.collection.TraversableOnce$class.toBuffer(TraversableOnce.scala:265)
>       at scala.collection.AbstractIterator.toBuffer(Iterator.scala:1157)
>       at 
> scala.collection.TraversableOnce$class.toArray(TraversableOnce.scala:252)
>       at scala.collection.AbstractIterator.toArray(Iterator.scala:1157)
>       at 
> org.apache.spark.sql.catalyst.plans.QueryPlan.transformExpressionsUp(QueryPlan.scala:121)
>       at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$apply$3.apply(CheckAnalysis.scala:45)
>       at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$apply$3.apply(CheckAnalysis.scala:43)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.foreach(TreeNode.scala:78)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$foreachUp$1.apply(TreeNode.scala:87)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$foreachUp$1.apply(TreeNode.scala:87)
>       at scala.collection.immutable.List.foreach(List.scala:318)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.foreachUp(TreeNode.scala:87)
>       at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis.apply(CheckAnalysis.scala:43)
>       at 
> org.apache.spark.sql.SQLContext$QueryExecution.assertAnalyzed(SQLContext.scala:1069)
>       at org.apache.spark.sql.DataFrame.(DataFrame.scala:133)
>       at org.apache.spark.sql.DataFrame$.apply(DataFrame.scala:51)
>       at org.apache.spark.sql.hive.HiveContext.sql(HiveContext.scala:92)
> {code}



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