SparkSQL has already been released and has been part of the Spark code-base since Spark 1.0. The latest stable release is Spark 1.1 (here's the Spark SQL Programming Guide) and we're currently voting on Spark 1.2.
Dear spark experts, I am very interested in Spark SQL availability in the future – could someone share with me the information about the following questions?
1. Is there some ETAs for the Spark SQL release?
2. I heard there is a Hive on Spark program also – what’s the difference between Spark SQL and Hive on Spark?