title: Apache Drill vs Spark
body: <p>I have some expirience with Apache Spark and Spark-SQL. Recently I've found Apache Drill project. Could you describe me what are the most significant advantages/differences between them? I've already read
  <a href="https://stackoverflow.com/questions/17290397/fast-hadoop-analytics-cloudera-impala-vs-spark-shark-vs-apache-drill">Fast Hadoop Analytics (Cloudera Impala vs Spark/Shark vs Apache Drill)</a>
  but this topic is still unclear for me.</p>