can revert to the old behavior by setting the
> spark.sql.specializeSingleDistinctAggPlanning option to false. See also:
> https://github.com/apache/spark/blob/branch-1.6/sql/core/src/main/scala/org/apache/spark/sql/SQLConf.scala#L452-L462
>
> HTH
>
> Kind regards,
>
> Her
Hi folks,
I have compared the performance of Spark SQL version 1.6.0 and version
1.5.2. In a simple case, Spark 1.6.0 is quite faster than Spark 1.5.2.
However in a more complex query - in our case it is an aggregation query
with grouping sets, Spark SQL version 1.6.0 is very much slower than
