Hello. I made some test comparing postgresql 8.0.4 based on two servers. Here is a link: http://85.128.68.44/ >From my point of view it seems like: - with opteron I found that it works very FAST periodicaly, why??? Maybe I did something wrong or..... - xeon seems to work almost all time on the same level but has much less performance than opteron. Is it normal? Did anyone has similar tests/results? BR, Marcin ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match