747b0392__5_1___Postgres_OnLine_Journal__Microsoft_SQL_Server_2008
[Feature] OS - Why is this important? Why would you even dream of not running on Windows? If you decide one day that Microsoft is not your best friend in the whole wide world, you can ditch them or at least on your DB Server (could that ever happen?). On a side note, Microsoft can't compete with Oracle on Linux/Unix anyway. If Microsoft has a non-Microsoft DB running on a customer's box, I wonder which database they would prefer - Oracle, IBM DB2, Sun MySQL or PostgreSQL? [MySQL 5.1] Windows Desktop/Server , Linux, Unix, Mac [PostgreSQL 8.4] Windows Desktop/Server, Linux, Unix, Mac [Microsoft SQL Server 2008] 
Windows Desktop/Server
Cross Compare of PostgreSQL 8.4, SQL Server 2008, MySQL 5.1 - Postgres OnLine Journal
Microsoft SQL Server 2008