"You can also, as Sherry pointed out, poke it with JDBC or ODBC queries, call it from Ruby, Python, Scala, Clojure, or other languages, or attack it from within an SQL console, as Sherry himself did during a demonstration.It also starts with an SQL query that is run through the Hawq parser, like so:An SQL query gets parsed by the Hawq database layer for HDFS" . . . . .