[GitHub] carbondata pull request #1464: [WIP][CARBONDATA-1523]Pre Aggregate table sel...

[ravipesala]

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

    https://github.com/apache/carbondata/pull/1464#discussion_r148997142
  
    --- Diff: 
integration/spark2/src/main/scala/org/apache/spark/sql/CarbonEnv.scala ---
    @@ -51,6 +51,7 @@ class CarbonEnv {
     
       def init(sparkSession: SparkSession): Unit = {
         sparkSession.udf.register("getTupleId", () => "")
    +    sparkSession.udf.register("preAgg", () => "")
    --- End diff --
    
    add comment for usage


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