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UD 4.6 and UDH 4.6 Due to Be Released

The Universal Driver 4.6 and Universal Driver Heavy 4.6 are due to be released in May 2009.

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Release Date: Thursday, April 30, 2009

The Universal Driver 4.6 and Universal Driver Heavy 4.6 are due to be released in May 2009. The Universal Driver 4.6 replaces the Universal Driver 4.5. The Universal Driver Heavy 4.6 replaces the Universal Driver Heavy 4.5. Upgrades from the UD/UDH 4.5 to the UD/UDH 4.6 are FREE (shipping charges apply).

During the Universal Driver testing process, it was discovered that the current versions of the Linear Hash (LH) filing system have some inconsistencies. Specifically, records stored in the LH can (in theory) have unlimited-length keys, but many of the tools and internal processes of OpenInsight expect that record keys do have a limit.

In both the UD 4.6 and UDH 4.6 record keys can now be a maximum of 512 characters long. Any keys that exceed this limit will now be "illegal" and applications will be unable to either read or write them. The server event log will report Linear Hash error 1016 for this condition.

Since this will make the records unreadable, they will be treated as though there is a "group format error" (GFE) in any table that contains them, and so the Database Manager tool in OpenInsight release 9.0.1 to Verify LH has also been updated to report these "errors", and the "fix" option has been updated to copy them to a new table called DUMP_FIX_SAVE.

Another, more critical fix, is that currently, the "Fix GFEs" option on the Verify LH menu silently considers any records with keys greater than 50 characters long to be GFEs. Anyone running the "Fix GFEs" option, either from Verify LH menu or the Fix Group Format Errors menu, will lose any records that have keys longer than 50 characters. As a result of this issue, we are including with both the UD 4.6 and UDH 4.6 a RDK containing a FIX_LH routine. This updated routine removes the "50-character-throwaway" functionality and replaces it with the "512-character-save" functionality.


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About Revelation Software

Founded in 1982, Revelation Software delivers a suite of application development tools and companion services that take full advantage of leading network computing architectures, messaging, groupware, and client server platforms. Today, the company's flagship product OpenInsight is the only database development and application environment that provides both Windows and Java-based GUI s tools to develop and deploy web-based and client server applications that support native and relational XML, SQL, Lotus Notes and the leading legacy Multi-Value data sources such as Arev, Pick and IBM Universe. There are more than 1.5 million licensed users of Revelation products across 60,000 deployed sites worldwide. The company has offices in Westwood, New Jersey, as well as a European distributor in the United Kingdom, and an Asia Pacific subsidiary in Australia.

For more information, visit http:/​/​www.revelation.com

About Univeral Driver Heavy

For more information, visit http:/​/​www.revelation.com

About OpenInsight

OpenInsight is a repository-based applications development environment that enables development teams to work collaboratively to design, develop, deploy and scale high-performance business solutions on leading messaging and client/server platforms. OpenInsight is a Windows-based application development environment that can reside on either Windows or Linux servers when used in conjuction with our network product Universal Driver 4.5. Arev32, Character to OpenInsight (CTO), the U2 Connector, WebOI and the Bravo Dashboard are all included in OpenInsight 9.0 Server Edition and above.

For more information, visit http:/​/​www.revelation.com/​Revelation.nsf/​byTitle/​5DA001116EB098C085256DC500658FF4?OpenDocument

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