[GitHub] carbondata pull request #1469: [WIP] Spark-2.2 Carbon Integration - Phase 1

[ravipesala]

Github user ravipesala commented on a diff in the pull request:

    https://github.com/apache/carbondata/pull/1469#discussion_r153061350
  
    --- Diff: 
integration/spark2/src/main/scala/org/apache/spark/sql/execution/command/schema/AlterTableDropColumnCommand.scala
 ---
    @@ -20,9 +20,10 @@ package org.apache.spark.sql.execution.command.schema
     import scala.collection.JavaConverters._
     import scala.collection.mutable.ListBuffer
     
    +import org.apache.hadoop.hive.ql.session.SessionState
    --- End diff --
    
    remove unused import


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