In the new version, VoltDB's palette of SQL commands has been expanded. It now supports for the SQL LIKE, NOT LIKE and UNION calls. It has a number of new column functions too, including those for counting the number of characters within a column field and for indexing queries. "If you have a very popular query, you would like to be able to index it, so it would go fast," Stonebraker said. Ad-Hoc SQL queries can be executed faster -- the database can now run up to tens of thousands of ad-hoc queries per second.
Released as open source under a Gnu GPL version 3 license, VoltDB is available at no cost. VoltDB also offers a commercially supported introductory version for slightly less than US$10,000, as well as an enterprise version that starts at around $35,000.