ZDNet UK: IBM Patent Sparks Open Source Code Rewrite

"Open source developers have rewritten a piece of code to avoid violating an IBM patent, raising questions over the effectiveness of IBM's policy to allow open source developers the free use of some of its patents.

"Developers on the open source database PostgreSQL announced on a mailing list last week that the latest release of the database contains a fix that has been added to avoid violating a patent filed by IBM..."

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