Does Apache Spark maintain a columnar structure when creating RDDs from Parquet or ORC files?

n df.cache().map{row => ...}? Is it a logical row which maintains an array of columns and each column in turn is an array of values for batchSize rows? -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Does-Apache-Spark-maintain-a-columnar-structure-when

Re: Does Apache Spark maintain a columnar structure when creating RDDs from Parquet or ORC files?

ze rows? -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Does-Apache-Spark-maintain-a-columnar-structure-when-creating-RDDs-from-Parquet-or-ORC-files-tp23139.html Sent from the Apache Spark User List mailing li