Server Databases Clash : NO mention of PostgreSQL ?

Hello,

Does somebody knows why this eWeek article that does a benchmark of
theses Databases (DB2 7.2 ,SQL Server, MySQL,Oracle9i and ASE) whithout
having added PostgreSQL ?

Here's the URL of the article :
http://www.eweek.com/article2/0,3959,293,00.asp

Thanks in advance !

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Bruno BAGUETTE - bruno.baguette@netcourrier.com