Today we’ve learned of an update coming from EnterpriseDB, the largest independent PostgreSQL open source database technology provider. The company released a customer case study detailing how international marketing services company Aquent replaced its existing Sybase database with EnterpriseDB Postgres Plus Advanced Server. Adquent operates data centers in the U.S, Europe and Asia, and estimates savings of about $100,000 per year thanks to the switch to EnterpriseDB, according to a release.

“Aquent needed database replication at the lowest possible cost to ensure users’ access to the company’s global servers in one application,” said Robin Schumacher, director of product strategy, EnterpriseDB. “

The PostgreSQL company also teamed up with cloud database migration company Distributed Logic who addresses some parts of the deal. EnterpriseDB released its contribution to the project for its open source community.

Just last week, EnterpriseDB blogged some of the most major features of PostgreSQL 9.1, which is currently in beta. It currently includes security label, plugin commands, synchronous replication and so on. A bit earlier on April 12, company CEO Ed Boyajian and Bruce Momjian, co-gounder of the Global PostgreSQL Development Group, held a joint conference at the O’Reilly MySQL Conference.

We covered when it was first made public that Adquent was planning to switch to EnterpriseDB. The latter also released a security suite for PostgreSQL, which is designed to improve website’s defense against SQL injections.

In other news from the open source cloud, the latest version of OpenStack is rolling out. OpenStack is a joint open-source cloud initiative involving Rackspace, NASA and others, and the Cactus release brings a number of new features with it. That includes OpenStack Compute support for all major virtualization technologies, IPv6 support, and the introduction of the new OpenStack API 1.1 arriving with more custom options and support for extensions.