Experts,
I have few basic questions on DataFrames vs Spark SQL. My confusion is
more with DataFrames.
1) What is the difference between Spark SQL and DataFrames? Are they same?
2) Documentation says SchemaRDD is renamed as DataFrame. This means
SchemaRDD is not existing in 1.3?
3) As per documentation, it looks like creating dataframe is no different
than SchemaRDD - df =
sqlContext.jsonFile("examples/src/main/resources/people.json").
So, my question is what is the difference?
Thanks for your help.
Arun
