GitHub user chenghao-intel opened a pull request:

    https://github.com/apache/spark/pull/8234

    [SPARK-10044][SQL]Fix bug AnalysisException in resolving reference for 
sorting with agg…

    ```scala
    withTempTable("mytable") {
          sqlContext.sparkContext.parallelize(1 to 10).map(i => (i, i.toString))
            .toDF("key", "value")
            .registerTempTable("mytable")
          checkAnswer(sql(
            """select max(value) from mytable group by key % 2
              |order by max(concat(value,",", key)), min(substr(value, 0, 4))
              |""".stripMargin), Row("8") :: Row("9") :: Nil)
        }
    ```
    Causes exception like:
    ```
    cannot resolve '_aggOrdering' given input columns _c0, _aggOrdering, 
_aggOrdering;
    org.apache.spark.sql.AnalysisException: cannot resolve '_aggOrdering' given 
input columns _c0, _aggOrdering, _aggOrdering;
        at 
org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
        at 
org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:56)
        at 
org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:53)
        at 
org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:293)
        at 
org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:293)
        at 
org.apache.spark.sql.catalyst.trees.CurrentOrigin$.withOrigin(TreeNode.scala:51)
        at 
org.apache.spark.sql.catalyst.trees.TreeNode.transformUp(TreeNode.scala:292)
        at 
org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$5.apply(TreeNode.scala:290)
        at 
org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$5.apply(TreeNode.scala:290)
        at 
org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$4.apply(TreeNode.scala:249)
        at scala.collection.Iterator$$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)
    ```

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/chenghao-intel/spark resolve_sort

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/spark/pull/8234.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #8234
    
----
commit e9fc16c9b465a06fa6afa62ee69a4ad873c14669
Author: Cheng Hao <[email protected]>
Date:   2015-08-17T05:13:59Z

    fix bug AnalysisException in resolving reference for sorting with 
aggregation

----


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