Re: How 'select name,age from TBL_STUDENT where age = 37' is optimized when caching it

Your dataframe is cached. Thus, your plan is stored as an InMemoryRelation. You can read the logics in CacheManager.scala. Good luck, Xiao Li 2015-11-16 6:35 GMT-08:00 Todd : > Hi, > > When I cache the dataframe and run the query, > > val df = sqlContext.sql("select name,age from TBL_STUD

How 'select name,age from TBL_STUDENT where age = 37' is optimized when caching it

Hi, When I cache the dataframe and run the query, val df = sqlContext.sql("select name,age from TBL_STUDENT where age = 37") df.cache() df.show println(df.queryExecution) I got the following execution plan,from the optimized logical plan,I can see the whole analyzed logical