Hi, Where could I find good documentation on the DataFrame DSL? I'm struggling trying to combine selects, groupBy and aggregations. A language definition would also help.
I perused these resources, but still have some gaps in my understanding and things are not doing what I'd expect: https://spark.apache.org/docs/1.3.0/sql-programming-guide.html https://spark.apache.org/docs/1.3.0/api/scala/index.html#org.apache.spark.sql.DataFrame https://spark.apache.org/docs/1.3.0/api/scala/index.html#org.apache.spark.sql.functions$ Thanks, Gerard.
