Open-source database company My SQL has acquired a small web application technology company and in the process hired its founder.

MySQL has acquired Netfrastructure, a company that makes tools and server software for building web-based applications. It has also hired Netrastructure's founder and president, Jim Starkey, a noted database software architect, who becomes a senior software architect at MySQL.

The move follows Oracle's recent acquisition of two open-source companies, Innobase and SleepyCat software, and was seen by some as a defensive move by MySQL to strengthen its development team and provide new options for the future development of its open-source database.

Before Netfrastructure, Starkey founded Interbase Software and developed its relational database of the same name. Interbase claimed to be the first database to incorporate several features that are now widely used, including event alerts, triggers and support for BLOBS (binary large objects). Starkey also designed the former Digital Equipment's relational database architecture.

Interbase Software was eventually acquired by Borland Software, which released the software's code to the open-source community. That led to the creation of the Firebird open-source database project, to which Starkey was a contributor.

Starkey's move to MySQL led to speculation that the company plans to move its database to the Firebird architecture as a defensive move against Oracle's open-source acquisitions. Innobase and Sleepycat made two of the popular database transaction engines used with MySQL's database.

Kaj Arn", MySQL's vice president for community relations, said there is no truth in that.

"We're definitely not planning on somehow transitioning our architecture. ... There's no truth to any re-engineering rumor," said Arn".

Others have speculated that Starkey will develop a new transactional engine for MySQL.

"I'll be interested to see what he works on. First will presumably be the defensive task of building a long-overdue transaction engine," wrote Ian Gilfillan, author of the book "Mastering MySQL 4," in a posting in his blog last week, when Starkey first leaked word of his new job.

Arn" didn't rule out that possibility but said no decision has been made. "It's a bit too early to speculate what his tasks would involve," he said.

The decision on whether to develop a new transaction engine rests largely on the outcome of MySQL's negotiations with Oracle to extend its contract to keep using Innobase's InnoDB engine, Arn" said. He declined to say when the current contract expires, saying only that it was "not a short-term thing."

"We're looking at several different options of how to proceed. The default is the relationship with Oracle and we're seeing if we can continue that," he said.

He also would not comment on whether the transaction engine in Netfrastructure's software works with MySQL today or how much porting work would be required. "We're looking at all the different ways of using the technology [Starkey] has provided. We're not ready to comment on specifics," he said.

Netfrastructure's web development products combine a Firebird-like database developed by Starkey and an application server, Arn" said. MySQL could integrate the software with its own in several different ways. "It's not just the storage engine that would do some good, I think it could bring us forward in several ways," he said.