I think spark sql's in-memory columnar cache already does compression. Check out classes in following path :-
https://github.com/apache/spark/tree/master/sql/core/src/main/scala/org/apache/spark/sql/columnar/compression Although compression ratio is not as good as Parquet. Thanks -Nitin -- View this message in context: http://apache-spark-developers-list.1001551.n3.nabble.com/compress-in-memory-column-storage-used-in-sparksql-cache-table-tp13932p13937.html Sent from the Apache Spark Developers List mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@spark.apache.org For additional commands, e-mail: dev-h...@spark.apache.org